diff --git a/packages/flutter_availability/lib/src/ui/view_models/availability_view_model.dart b/packages/flutter_availability/lib/src/ui/view_models/availability_view_model.dart
index 392cd51..1a86d4c 100644
--- a/packages/flutter_availability/lib/src/ui/view_models/availability_view_model.dart
+++ b/packages/flutter_availability/lib/src/ui/view_models/availability_view_model.dart
@@ -240,7 +240,7 @@ class AvailabilityViewModel {
     var startDate = DateTime(0, 0, 0, startTime!.hour, startTime!.minute);
     var endDate = DateTime(0, 0, 0, endTime!.hour, endTime!.minute);
 
-    return template.availabilityDeviatesFromTemplate(
+    return template.availabilityTimeDeviatesFromTemplate(
       availability,
       startDate,
       endDate,
diff --git a/packages/flutter_availability/lib/src/ui/widgets/calendar.dart b/packages/flutter_availability/lib/src/ui/widgets/calendar.dart
index 2a9dbcc..b0f2635 100644
--- a/packages/flutter_availability/lib/src/ui/widgets/calendar.dart
+++ b/packages/flutter_availability/lib/src/ui/widgets/calendar.dart
@@ -1,7 +1,6 @@
 import "package:flutter/material.dart";
 import "package:flutter_availability/flutter_availability.dart";
 import "package:flutter_availability/src/ui/widgets/calendar_grid.dart";
-import "package:flutter_availability/src/util/availability_deviation.dart";
 import "package:flutter_availability/src/util/scope.dart";
 
 ///
@@ -170,11 +169,21 @@ List<CalendarDay> _mapAvailabilitiesToCalendarDays(
 ) =>
     availabilitySnapshot.data?.map(
       (availability) {
-        var templateIsDeviated = availability.template != null &&
-            isTemplateDeviated(
-              availability.availabilityModel,
-              availability.template!,
-            );
+        var availabilityModel = availability.availabilityModel;
+        var templateTimeIsDeviated =
+            availability.template?.availabilityTimeDeviatesFromTemplate(
+                  availabilityModel,
+                  availabilityModel.startDate,
+                  availabilityModel.endDate,
+                ) ??
+                false;
+        var templateBreaksAreDeviated =
+            availability.template?.availabilityBreaksDeviatesFromTemplate(
+                  availabilityModel,
+                ) ??
+                false;
+        var templateIsDeviated =
+            templateTimeIsDeviated || templateBreaksAreDeviated;
         return CalendarDay(
           date: DateUtils.dateOnly(availability.availabilityModel.startDate),
           color: availability.template != null
diff --git a/packages/flutter_availability/lib/src/ui/widgets/template_legend.dart b/packages/flutter_availability/lib/src/ui/widgets/template_legend.dart
index ab31e3d..e4e5dfe 100644
--- a/packages/flutter_availability/lib/src/ui/widgets/template_legend.dart
+++ b/packages/flutter_availability/lib/src/ui/widgets/template_legend.dart
@@ -48,6 +48,7 @@ class _TemplateLegendState extends State<TemplateLegend> {
         false;
 
     var templatesVisible = templatesAvailable && _templateDrawerOpen;
+
     if (!templatesAvailable &&
         !featureSet.require(AvailabilityFeature.templates)) {
       return const SizedBox.shrink();
@@ -193,10 +194,8 @@ class _TemplateLegendState extends State<TemplateLegend> {
             const SizedBox(height: 12),
             if (templatesLoading) ...[
               options.loadingIndicatorBuilder(context),
-            ] else ...[
-              if (templates.isEmpty) ...[
-                createNewTemplateButton,
-              ],
+            ] else if (templates.isEmpty) ...[
+              createNewTemplateButton,
             ],
           ],
         ],
diff --git a/packages/flutter_availability/lib/src/util/availability_deviation.dart b/packages/flutter_availability/lib/src/util/availability_deviation.dart
deleted file mode 100644
index 9585558..0000000
--- a/packages/flutter_availability/lib/src/util/availability_deviation.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-import "package:flutter_availability/src/util/utils.dart";
-import "package:flutter_availability_data_interface/flutter_availability_data_interface.dart";
-
-/// Determines if the availability is deviated from the template that it is
-/// based on
-bool isTemplateDeviated(
-  AvailabilityModel availability,
-  AvailabilityTemplateModel template,
-) {
-  var dayOfWeek = availability.startDate.weekday;
-  var templateStartDate =
-      template.getStartTimeForDayOfWeek(WeekDay.values[dayOfWeek - 1]);
-  var templateEndDate =
-      template.getEndTimeForDayOfWeek(WeekDay.values[dayOfWeek - 1]);
-
-  if (templateStartDate == null || templateEndDate == null) {
-    return true;
-  }
-
-  var templateIsDeviated =
-      !isAtSameTime(availability.startDate, templateStartDate) ||
-          !isAtSameTime(availability.endDate, templateEndDate);
-  return templateIsDeviated;
-}
diff --git a/packages/flutter_availability/test/util/availability_deviation_test.dart b/packages/flutter_availability/test/util/availability_deviation_test.dart
deleted file mode 100644
index df5a764..0000000
--- a/packages/flutter_availability/test/util/availability_deviation_test.dart
+++ /dev/null
@@ -1,143 +0,0 @@
-import "package:flutter_availability/src/util/availability_deviation.dart";
-import "package:flutter_availability_data_interface/flutter_availability_data_interface.dart";
-import "package:flutter_test/flutter_test.dart";
-
-void main() {
-  group("isTemplateDeviated", () {
-    group("day templates", () {
-      test("returns false when availability matches the day template", () {
-        var availability = AvailabilityModel(
-          userId: "user1",
-          startDate: DateTime(2023, 7, 9, 9, 0),
-          endDate: DateTime(2023, 7, 9, 17, 0),
-          breaks: [],
-        );
-        var template = AvailabilityTemplateModel(
-          userId: "user1",
-          name: "Day Template",
-          color: 0,
-          templateType: AvailabilityTemplateType.day,
-          templateData: DayTemplateData(
-            startTime: DateTime(2023, 7, 9, 9, 0),
-            endTime: DateTime(2023, 7, 9, 17, 0),
-            breaks: [],
-          ),
-        );
-        var result = isTemplateDeviated(availability, template);
-        expect(result, isFalse);
-      });
-
-      test("returns true when availability does not match the day template",
-          () {
-        var availability = AvailabilityModel(
-          userId: "user1",
-          startDate: DateTime(2023, 7, 9, 10, 0),
-          endDate: DateTime(2023, 7, 9, 18, 0),
-          breaks: [],
-        );
-        var template = AvailabilityTemplateModel(
-          userId: "user1",
-          name: "Day Template",
-          color: 0,
-          templateType: AvailabilityTemplateType.day,
-          templateData: DayTemplateData(
-            startTime: DateTime(2023, 7, 9, 9, 0),
-            endTime: DateTime(2023, 7, 9, 17, 0),
-            breaks: [],
-          ),
-        );
-        var result = isTemplateDeviated(availability, template);
-        expect(result, isTrue);
-      });
-    });
-
-    group("week templates", () {
-      test("returns false when availability matches the week template", () {
-        var availability = AvailabilityModel(
-          userId: "user1",
-          startDate: DateTime(2023, 7, 9, 9, 0),
-          endDate: DateTime(2023, 7, 9, 17, 0),
-          breaks: [],
-        );
-        var template = AvailabilityTemplateModel(
-          userId: "user1",
-          name: "Week Template",
-          color: 0,
-          templateType: AvailabilityTemplateType.week,
-          templateData: WeekTemplateData.forDays(
-            sunday: DayTemplateData(
-              startTime: DateTime(2023, 7, 9, 9, 0),
-              endTime: DateTime(2023, 7, 9, 17, 0),
-              breaks: [],
-            ),
-          ),
-        );
-        var result = isTemplateDeviated(availability, template);
-        expect(result, isFalse);
-      });
-
-      test("returns true when availability does not match the week template",
-          () {
-        var availability = AvailabilityModel(
-          userId: "user1",
-          startDate: DateTime(2023, 7, 9, 10, 0), // sunday
-          endDate: DateTime(2023, 7, 9, 18, 0), // sunday
-          breaks: [],
-        );
-        var template = AvailabilityTemplateModel(
-          userId: "user1",
-          name: "Week Template",
-          color: 0,
-          templateType: AvailabilityTemplateType.week,
-          templateData: WeekTemplateData.forDays(
-            sunday: DayTemplateData(
-              startTime: DateTime(2023, 7, 9, 9, 0),
-              endTime: DateTime(2023, 7, 9, 17, 0),
-              breaks: [],
-            ),
-          ),
-        );
-        var result = isTemplateDeviated(availability, template);
-        expect(result, isTrue);
-      });
-
-      test(
-          "returns true when the template is missing the "
-          "day of the availability", () {
-        var availability = AvailabilityModel(
-          userId: "user1",
-          startDate: DateTime(2023, 7, 10, 10, 0), // monday
-          endDate: DateTime(2023, 7, 10, 18, 0), // monday
-          breaks: [],
-        );
-        var template = const AvailabilityTemplateModel(
-          userId: "user1",
-          name: "Week Template",
-          color: 0,
-          templateType: AvailabilityTemplateType.week,
-          templateData: WeekTemplateData(data: {}),
-        );
-        var result = isTemplateDeviated(availability, template);
-        expect(result, isTrue);
-      });
-
-      test("returns true when the template is fully null", () {
-        var availability = AvailabilityModel(
-          userId: "user1",
-          startDate: DateTime(2023, 7, 10, 10, 0),
-          endDate: DateTime(2023, 7, 10, 18, 0),
-          breaks: [],
-        );
-        var template = const AvailabilityTemplateModel(
-          userId: "user1",
-          name: "Week Template",
-          color: 0,
-          templateType: AvailabilityTemplateType.week,
-          templateData: WeekTemplateData(data: {}),
-        );
-        var result = isTemplateDeviated(availability, template);
-        expect(result, isTrue);
-      });
-    });
-  });
-}
diff --git a/packages/flutter_availability_data_interface/lib/src/models/templates.dart b/packages/flutter_availability_data_interface/lib/src/models/templates.dart
index 3774981..09e1839 100644
--- a/packages/flutter_availability_data_interface/lib/src/models/templates.dart
+++ b/packages/flutter_availability_data_interface/lib/src/models/templates.dart
@@ -123,12 +123,18 @@ class AvailabilityTemplateModel {
 
   /// check if an availability's day corresponds to the template with the given
   /// [availability] and [start] and [end] dates
-  bool availabilityDeviatesFromTemplate(
+  bool availabilityTimeDeviatesFromTemplate(
     AvailabilityModel availability,
     DateTime start,
     DateTime end,
   ) =>
-      templateData.availabilityDeviates(availability, start, end);
+      templateData.availabilityTimeDeviates(availability, start, end);
+
+  /// check if an availability's breaks correspond to the template
+  bool availabilityBreaksDeviatesFromTemplate(
+    AvailabilityModel availability,
+  ) =>
+      templateData.availabilityBreaksDeviates(availability);
 }
 
 /// Used as the key for defining week-based templates
@@ -198,12 +204,15 @@ abstract interface class TemplateData {
   void validate();
 
   /// Check if an availability's day corresponds to the template with the given
-  /// [availability] and [start] and [end] dates
-  bool availabilityDeviates(
+  /// [availability]
+  bool availabilityTimeDeviates(
     AvailabilityModel availability,
     DateTime start,
     DateTime end,
   );
+
+  /// Check if an availability's breaks correspond to the template
+  bool availabilityBreaksDeviates(AvailabilityModel availability);
 }
 
 /// A week based template data structure
@@ -307,12 +316,12 @@ class WeekTemplateData implements TemplateData {
   }
 
   @override
-  bool availabilityDeviates(
+  bool availabilityTimeDeviates(
     AvailabilityModel availability,
     DateTime start,
     DateTime end,
   ) {
-    var dayOfWeek = WeekDay.values[availability.startDate.weekday];
+    var dayOfWeek = WeekDay.values[availability.startDate.weekday - 1];
     var data = _data[dayOfWeek];
     if (data == null) {
       // if the day of the week is not in the template, it deviates
@@ -321,6 +330,17 @@ class WeekTemplateData implements TemplateData {
     // compare the start and end with the template
     return !start.timeMatches(data.startTime) || !end.timeMatches(data.endTime);
   }
+
+  @override
+  bool availabilityBreaksDeviates(AvailabilityModel availability) {
+    var dayOfWeek = WeekDay.values[availability.startDate.weekday - 1];
+    var data = _data[dayOfWeek];
+    if (data == null) {
+      // if the day of the week is not in the template, it deviates
+      return true;
+    }
+    return checkAvailabilityBreaksDeviates(data.breaks, availability.breaks);
+  }
 }
 
 /// A day based template data structure
@@ -452,12 +472,16 @@ class DayTemplateData implements TemplateData {
   }
 
   @override
-  bool availabilityDeviates(
+  bool availabilityTimeDeviates(
     AvailabilityModel availability,
     DateTime start,
     DateTime end,
   ) =>
       !start.timeMatches(startTime) || !end.timeMatches(endTime);
+
+  @override
+  bool availabilityBreaksDeviates(AvailabilityModel availability) =>
+      checkAvailabilityBreaksDeviates(breaks, availability.breaks);
 }
 
 List<DateTime> _getDatesBetween(DateTime startDate, DateTime endDate) {
@@ -473,3 +497,20 @@ extension _MergeTime on DateTime {
   DateTime mergeTime(DateTime time) =>
       DateTime(year, month, day, time.hour, time.minute);
 }
+
+/// Checks if the availability breaks deviate from the template breaks
+/// If there are any differences in the breaks, this will return true
+/// If all the breaks are the same, this will return false
+bool checkAvailabilityBreaksDeviates(
+  List<AvailabilityBreakModel> templateBreaks,
+  List<AvailabilityBreakModel> availabilityBreaks,
+) =>
+    templateBreaks.length != availabilityBreaks.length ||
+    templateBreaks.any(
+      (templateBreak) => !availabilityBreaks.any(
+        (breakData) =>
+            breakData.startTime.timeMatches(templateBreak.startTime) &&
+            breakData.endTime.timeMatches(templateBreak.endTime) &&
+            breakData.submittedDuration == templateBreak.submittedDuration,
+      ),
+    );
diff --git a/packages/flutter_availability_data_interface/test/models_templates_test.dart b/packages/flutter_availability_data_interface/test/models_templates_test.dart
index aff0a87..c555126 100644
--- a/packages/flutter_availability_data_interface/test/models_templates_test.dart
+++ b/packages/flutter_availability_data_interface/test/models_templates_test.dart
@@ -182,6 +182,458 @@ void main() {
         );
       });
     });
+
+    group("availabilityTimeDeviates", () {
+      group("day templates", () {
+        test("returns false when availability matches the day template", () {
+          var availability = AvailabilityModel(
+            userId: "user1",
+            startDate: DateTime(2023, 7, 9, 9, 0),
+            endDate: DateTime(2023, 7, 9, 17, 0),
+            breaks: [],
+          );
+          var template = AvailabilityTemplateModel(
+            userId: "user1",
+            name: "Day Template",
+            color: 0,
+            templateType: AvailabilityTemplateType.day,
+            templateData: DayTemplateData(
+              startTime: DateTime(2023, 7, 9, 9, 0),
+              endTime: DateTime(2023, 7, 9, 17, 0),
+              breaks: [],
+            ),
+          );
+          var result = template.availabilityTimeDeviatesFromTemplate(
+            availability,
+            availability.startDate,
+            availability.endDate,
+          );
+          expect(result, isFalse);
+        });
+
+        test("returns true when availability does not match the day template",
+            () {
+          var availability = AvailabilityModel(
+            userId: "user1",
+            startDate: DateTime(2023, 7, 9, 10, 0),
+            endDate: DateTime(2023, 7, 9, 18, 0),
+            breaks: [],
+          );
+          var template = AvailabilityTemplateModel(
+            userId: "user1",
+            name: "Day Template",
+            color: 0,
+            templateType: AvailabilityTemplateType.day,
+            templateData: DayTemplateData(
+              startTime: DateTime(2023, 7, 9, 9, 0),
+              endTime: DateTime(2023, 7, 9, 17, 0),
+              breaks: [],
+            ),
+          );
+          var result = template.availabilityTimeDeviatesFromTemplate(
+            availability,
+            availability.startDate,
+            availability.endDate,
+          );
+          expect(result, isTrue);
+        });
+      });
+
+      group("week templates", () {
+        test("returns false when availability matches the week template", () {
+          var availability = AvailabilityModel(
+            userId: "user1",
+            startDate: DateTime(2023, 7, 9, 9, 0),
+            endDate: DateTime(2023, 7, 9, 17, 0),
+            breaks: [],
+          );
+          var template = AvailabilityTemplateModel(
+            userId: "user1",
+            name: "Week Template",
+            color: 0,
+            templateType: AvailabilityTemplateType.week,
+            templateData: WeekTemplateData.forDays(
+              sunday: DayTemplateData(
+                startTime: DateTime(2023, 7, 9, 9, 0),
+                endTime: DateTime(2023, 7, 9, 17, 0),
+                breaks: [],
+              ),
+            ),
+          );
+          var result = template.availabilityTimeDeviatesFromTemplate(
+            availability,
+            availability.startDate,
+            availability.endDate,
+          );
+          expect(result, isFalse);
+        });
+
+        test("returns true when availability does not match the week template",
+            () {
+          var availability = AvailabilityModel(
+            userId: "user1",
+            startDate: DateTime(2023, 7, 9, 10, 0), // sunday
+            endDate: DateTime(2023, 7, 9, 18, 0), // sunday
+            breaks: [],
+          );
+          var template = AvailabilityTemplateModel(
+            userId: "user1",
+            name: "Week Template",
+            color: 0,
+            templateType: AvailabilityTemplateType.week,
+            templateData: WeekTemplateData.forDays(
+              sunday: DayTemplateData(
+                startTime: DateTime(2023, 7, 9, 9, 0),
+                endTime: DateTime(2023, 7, 9, 17, 0),
+                breaks: [],
+              ),
+            ),
+          );
+          var result = template.availabilityTimeDeviatesFromTemplate(
+            availability,
+            availability.startDate,
+            availability.endDate,
+          );
+          expect(result, isTrue);
+        });
+
+        test(
+            "returns true when the template is missing the "
+            "day of the availability", () {
+          var availability = AvailabilityModel(
+            userId: "user1",
+            startDate: DateTime(2023, 7, 10, 10, 0), // monday
+            endDate: DateTime(2023, 7, 10, 18, 0), // monday
+            breaks: [],
+          );
+          var template = const AvailabilityTemplateModel(
+            userId: "user1",
+            name: "Week Template",
+            color: 0,
+            templateType: AvailabilityTemplateType.week,
+            templateData: WeekTemplateData(data: {}),
+          );
+          var result = template.availabilityTimeDeviatesFromTemplate(
+            availability,
+            availability.startDate,
+            availability.endDate,
+          );
+          expect(result, isTrue);
+        });
+
+        test("returns true when the template is fully null", () {
+          var availability = AvailabilityModel(
+            userId: "user1",
+            startDate: DateTime(2023, 7, 10, 10, 0),
+            endDate: DateTime(2023, 7, 10, 18, 0),
+            breaks: [],
+          );
+          var template = const AvailabilityTemplateModel(
+            userId: "user1",
+            name: "Week Template",
+            color: 0,
+            templateType: AvailabilityTemplateType.week,
+            templateData: WeekTemplateData(data: {}),
+          );
+          var result = template.availabilityTimeDeviatesFromTemplate(
+            availability,
+            availability.startDate,
+            availability.endDate,
+          );
+          expect(result, isTrue);
+        });
+      });
+    });
+  });
+
+  group("availabilityBreaksDeviates", () {
+    group("day templates", () {
+      test("returns false when availability matches the day template breaks",
+          () {
+        var availability = AvailabilityModel(
+          userId: "user1",
+          startDate: DateTime(2023, 7, 9, 9, 0),
+          endDate: DateTime(2023, 7, 9, 17, 0),
+          breaks: [
+            AvailabilityBreakModel(
+              startTime: DateTime(2023, 7, 9, 12, 0),
+              endTime: DateTime(2023, 7, 9, 13, 0),
+            ),
+          ],
+        );
+        var template = AvailabilityTemplateModel(
+          userId: "user1",
+          name: "Day Template",
+          color: 0,
+          templateType: AvailabilityTemplateType.day,
+          templateData: DayTemplateData(
+            startTime: DateTime(2023, 7, 9, 9, 0),
+            endTime: DateTime(2023, 7, 9, 17, 0),
+            breaks: [
+              AvailabilityBreakModel(
+                startTime: DateTime(2023, 7, 9, 12, 0),
+                endTime: DateTime(2023, 7, 9, 13, 0),
+              ),
+            ],
+          ),
+        );
+        var result =
+            template.availabilityBreaksDeviatesFromTemplate(availability);
+        expect(result, isFalse);
+      });
+
+      test(
+          "returns true when availability breaks do not match the day template",
+          () {
+        var availability = AvailabilityModel(
+          userId: "user1",
+          startDate: DateTime(2023, 7, 9, 9, 0),
+          endDate: DateTime(2023, 7, 9, 17, 0),
+          breaks: [
+            AvailabilityBreakModel(
+              startTime: DateTime(2023, 7, 9, 12, 0),
+              endTime: DateTime(2023, 7, 9, 13, 0),
+            ),
+          ],
+        );
+        var template = AvailabilityTemplateModel(
+          userId: "user1",
+          name: "Day Template",
+          color: 0,
+          templateType: AvailabilityTemplateType.day,
+          templateData: DayTemplateData(
+            startTime: DateTime(2023, 7, 9, 9, 0),
+            endTime: DateTime(2023, 7, 9, 17, 0),
+            breaks: [
+              AvailabilityBreakModel(
+                startTime: DateTime(2023, 7, 9, 12, 30),
+                endTime: DateTime(2023, 7, 9, 13, 30),
+              ),
+            ],
+          ),
+        );
+        var result =
+            template.availabilityBreaksDeviatesFromTemplate(availability);
+        expect(result, isTrue);
+      });
+
+      test(
+          "returns true when availability has more breaks than "
+          "the day template", () {
+        var availability = AvailabilityModel(
+          userId: "user1",
+          startDate: DateTime(2023, 7, 9, 9, 0),
+          endDate: DateTime(2023, 7, 9, 17, 0),
+          breaks: [
+            AvailabilityBreakModel(
+              startTime: DateTime(2023, 7, 9, 12, 0),
+              endTime: DateTime(2023, 7, 9, 12, 30),
+            ),
+            AvailabilityBreakModel(
+              startTime: DateTime(2023, 7, 9, 15, 0),
+              endTime: DateTime(2023, 7, 9, 15, 30),
+            ),
+          ],
+        );
+        var template = AvailabilityTemplateModel(
+          userId: "user1",
+          name: "Day Template",
+          color: 0,
+          templateType: AvailabilityTemplateType.day,
+          templateData: DayTemplateData(
+            startTime: DateTime(2023, 7, 9, 9, 0),
+            endTime: DateTime(2023, 7, 9, 17, 0),
+            breaks: [
+              AvailabilityBreakModel(
+                startTime: DateTime(2023, 7, 9, 12, 0),
+                endTime: DateTime(2023, 7, 9, 12, 30),
+              ),
+            ],
+          ),
+        );
+        var result =
+            template.availabilityBreaksDeviatesFromTemplate(availability);
+        expect(result, isTrue);
+      });
+
+      test(
+          "returns true when availability has fewer breaks than "
+          "the day template", () {
+        var availability = AvailabilityModel(
+          userId: "user1",
+          startDate: DateTime(2023, 7, 9, 9, 0),
+          endDate: DateTime(2023, 7, 9, 17, 0),
+          breaks: [],
+        );
+        var template = AvailabilityTemplateModel(
+          userId: "user1",
+          name: "Day Template",
+          color: 0,
+          templateType: AvailabilityTemplateType.day,
+          templateData: DayTemplateData(
+            startTime: DateTime(2023, 7, 9, 9, 0),
+            endTime: DateTime(2023, 7, 9, 17, 0),
+            breaks: [
+              AvailabilityBreakModel(
+                startTime: DateTime(2023, 7, 9, 12, 0),
+                endTime: DateTime(2023, 7, 9, 12, 30),
+              ),
+            ],
+          ),
+        );
+        var result =
+            template.availabilityBreaksDeviatesFromTemplate(availability);
+        expect(result, isTrue);
+      });
+    });
+
+    group("week templates", () {
+      test("returns false when availability matches the week template breaks",
+          () {
+        var availability = AvailabilityModel(
+          userId: "user1",
+          startDate: DateTime(2023, 7, 9, 9, 0), // Sunday
+          endDate: DateTime(2023, 7, 9, 17, 0), // Sunday
+          breaks: [
+            AvailabilityBreakModel(
+              startTime: DateTime(2023, 7, 9, 12, 0),
+              endTime: DateTime(2023, 7, 9, 13, 0),
+            ),
+          ],
+        );
+        var template = AvailabilityTemplateModel(
+          userId: "user1",
+          name: "Week Template",
+          color: 0,
+          templateType: AvailabilityTemplateType.week,
+          templateData: WeekTemplateData.forDays(
+            sunday: DayTemplateData(
+              startTime: DateTime(2023, 7, 9, 9, 0),
+              endTime: DateTime(2023, 7, 9, 17, 0),
+              breaks: [
+                AvailabilityBreakModel(
+                  startTime: DateTime(2023, 7, 9, 12, 0),
+                  endTime: DateTime(2023, 7, 9, 13, 0),
+                ),
+              ],
+            ),
+          ),
+        );
+        var result =
+            template.availabilityBreaksDeviatesFromTemplate(availability);
+        expect(result, isFalse);
+      });
+
+      test(
+          "returns true when availability breaks do not match the "
+          "week template", () {
+        var availability = AvailabilityModel(
+          userId: "user1",
+          startDate: DateTime(2023, 7, 9, 9, 0), // Sunday
+          endDate: DateTime(2023, 7, 9, 17, 0), // Sunday
+          breaks: [
+            AvailabilityBreakModel(
+              startTime: DateTime(2023, 7, 9, 12, 0),
+              endTime: DateTime(2023, 7, 9, 13, 0),
+            ),
+          ],
+        );
+        var template = AvailabilityTemplateModel(
+          userId: "user1",
+          name: "Week Template",
+          color: 0,
+          templateType: AvailabilityTemplateType.week,
+          templateData: WeekTemplateData.forDays(
+            sunday: DayTemplateData(
+              startTime: DateTime(2023, 7, 9, 9, 0),
+              endTime: DateTime(2023, 7, 9, 17, 0),
+              breaks: [
+                AvailabilityBreakModel(
+                  startTime: DateTime(2023, 7, 9, 12, 30),
+                  endTime: DateTime(2023, 7, 9, 13, 30),
+                ),
+              ],
+            ),
+          ),
+        );
+        var result =
+            template.availabilityBreaksDeviatesFromTemplate(availability);
+        expect(result, isTrue);
+      });
+
+      test(
+          "returns true when availability has more breaks than the "
+          "week template", () {
+        var availability = AvailabilityModel(
+          userId: "user1",
+          startDate: DateTime(2023, 7, 9, 9, 0), // Sunday
+          endDate: DateTime(2023, 7, 9, 17, 0), // Sunday
+          breaks: [
+            AvailabilityBreakModel(
+              startTime: DateTime(2023, 7, 9, 12, 0),
+              endTime: DateTime(2023, 7, 9, 12, 30),
+            ),
+            AvailabilityBreakModel(
+              startTime: DateTime(2023, 7, 9, 15, 0),
+              endTime: DateTime(2023, 7, 9, 15, 30),
+            ),
+          ],
+        );
+        var template = AvailabilityTemplateModel(
+          userId: "user1",
+          name: "Week Template",
+          color: 0,
+          templateType: AvailabilityTemplateType.week,
+          templateData: WeekTemplateData.forDays(
+            sunday: DayTemplateData(
+              startTime: DateTime(2023, 7, 9, 9, 0),
+              endTime: DateTime(2023, 7, 9, 17, 0),
+              breaks: [
+                AvailabilityBreakModel(
+                  startTime: DateTime(2023, 7, 9, 12, 0),
+                  endTime: DateTime(2023, 7, 9, 12, 30),
+                ),
+              ],
+            ),
+          ),
+        );
+        var result =
+            template.availabilityBreaksDeviatesFromTemplate(availability);
+        expect(result, isTrue);
+      });
+
+      test(
+          "returns true when availability has fewer breaks than "
+          "the week template", () {
+        var availability = AvailabilityModel(
+          userId: "user1",
+          startDate: DateTime(2023, 7, 9, 9, 0), // Sunday
+          endDate: DateTime(2023, 7, 9, 17, 0), // Sunday
+          breaks: [],
+        );
+        var template = AvailabilityTemplateModel(
+          userId: "user1",
+          name: "Week Template",
+          color: 0,
+          templateType: AvailabilityTemplateType.week,
+          templateData: WeekTemplateData.forDays(
+            sunday: DayTemplateData(
+              startTime: DateTime(2023, 7, 9, 9, 0),
+              endTime: DateTime(2023, 7, 9, 17, 0),
+              breaks: [
+                AvailabilityBreakModel(
+                  startTime: DateTime(2023, 7, 9, 12, 0),
+                  endTime: DateTime(2023, 7, 9, 12, 30),
+                ),
+              ],
+            ),
+          ),
+        );
+        var result =
+            template.availabilityBreaksDeviatesFromTemplate(availability);
+        expect(result, isTrue);
+      });
+    });
   });
 }