diff --git a/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bootstrap/TagHelpers/Form/DatePicker/AbpDatePickerBaseTagHelperService.cs b/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bootstrap/TagHelpers/Form/DatePicker/AbpDatePickerBaseTagHelperService.cs
index 15e81e6c3d..6359e15cbd 100644
--- a/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bootstrap/TagHelpers/Form/DatePicker/AbpDatePickerBaseTagHelperService.cs
+++ b/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bootstrap/TagHelpers/Form/DatePicker/AbpDatePickerBaseTagHelperService.cs
@@ -356,7 +356,7 @@ public abstract class AbpDatePickerBaseTagHelperService<TTagHelper> : AbpTagHelp
         
         if (options.IsUtc != null)
         {
-            attrList.Add("data-is-utc", "true");
+            attrList.Add("data-is-utc", options.IsUtc.ToString().ToLowerInvariant());
         }
         
         if (options.IsIso != null)
diff --git a/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Theme.Shared/wwwroot/libs/abp/aspnetcore-mvc-ui-theme-shared/bootstrap/dom-event-handlers.js b/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Theme.Shared/wwwroot/libs/abp/aspnetcore-mvc-ui-theme-shared/bootstrap/dom-event-handlers.js
index e47bd840a4..35b19292cc 100644
--- a/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Theme.Shared/wwwroot/libs/abp/aspnetcore-mvc-ui-theme-shared/bootstrap/dom-event-handlers.js
+++ b/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Theme.Shared/wwwroot/libs/abp/aspnetcore-mvc-ui-theme-shared/bootstrap/dom-event-handlers.js
@@ -359,11 +359,11 @@
                     options.locale.separator = separator;
                 }
 
-                var startDate = options.startDate ? getMoment(options.startDate) : null;
+                var startDate = options.startDate ? moment(options.startDate) : null;
                 if(singleDatePicker && !startDate){
-                    startDate = options.date ? getMoment(options.date) : null;
+                    startDate = options.date ? moment(options.date) : null;
                 }
-                var endDate = options.endDate ? getMoment(options.endDate) : null;
+                var endDate = options.endDate ? moment(options.endDate) : null;
                 
                 if (startDate) {
                     options.startDate = startDate;