UI timezone

DiunaBI.UI.Shared/Extensions/ServiceCollectionExtensions.cs

@@ -44,6 +44,7 @@ public static class ServiceCollectionExtensions
         services.AddScoped<LayerService>();
         services.AddScoped<DataInboxService>();
         services.AddScoped<JobService>();
+        services.AddScoped<DateTimeHelper>();
 
         // Filter state services (scoped to maintain state during user session)
         services.AddScoped<LayerFilterStateService>();