diff --git a/AsbCloudApp/Data/NotificationDto.cs b/AsbCloudApp/Data/NotificationDto.cs
index ee42f8d7..0fd8b673 100644
--- a/AsbCloudApp/Data/NotificationDto.cs
+++ b/AsbCloudApp/Data/NotificationDto.cs
@@ -42,17 +42,17 @@ public class NotificationDto : IId
     /// Дата регистрации уведомления
     /// </summary>
     [Required]
-    public DateTime RegistrationDate { get; set; }
+    public DateTimeOffset RegistrationDate { get; set; }
 
 	/// <summary>
 	/// Дата отправки уведомления
 	/// </summary>
-	public DateTime? SentDate { get; set; }
+	public DateTimeOffset? SentDate { get; set; }
 
 	/// <summary>
 	/// Дата прочтения уведомления
 	/// </summary>
-	public DateTime? ReadDate { get; set; }
+	public DateTimeOffset? ReadDate { get; set; }
 
     /// <summary>
     /// Состояние уведомления
@@ -82,12 +82,12 @@ public class NotificationDto : IId
 					ReadDate = null;
 					break;
 				case 1:
-					SentDate = DateTime.UtcNow;
+					SentDate = DateTimeOffset.UtcNow;
 					ReadDate = null;
 					break;
 				case 2:
-					SentDate = DateTime.UtcNow;
-					ReadDate = DateTime.UtcNow;
+					SentDate = DateTimeOffset.UtcNow;
+					ReadDate = DateTimeOffset.UtcNow;
 					break;
 			}
 		}
diff --git a/AsbCloudApp/Requests/NotificationDeleteRequest.cs b/AsbCloudApp/Requests/NotificationDeleteRequest.cs
index ec2026f3..56921d70 100644
--- a/AsbCloudApp/Requests/NotificationDeleteRequest.cs
+++ b/AsbCloudApp/Requests/NotificationDeleteRequest.cs
@@ -15,10 +15,10 @@ public class NotificationDeleteRequest
 	/// <summary>
 	/// Меньше или равно дате отправки
 	/// </summary>
-	public DateTime? LtSentDate { get; set; }
+	public DateTimeOffset? LtSentDate { get; set; }
 	
 	/// <summary>
 	/// Меньше или равно дате прочтения
 	/// </summary>
-	public DateTime? LtReadDate { get; set; }
+	public DateTimeOffset? LtReadDate { get; set; }
 }
\ No newline at end of file
diff --git a/AsbCloudApp/Services/Notifications/NotificationService.cs b/AsbCloudApp/Services/Notifications/NotificationService.cs
index d703ffb4..97b8bfb5 100644
--- a/AsbCloudApp/Services/Notifications/NotificationService.cs
+++ b/AsbCloudApp/Services/Notifications/NotificationService.cs
@@ -49,7 +49,7 @@ public class NotificationService
         var notification = new NotificationDto
         {
             IdUser = request.IdUser,
-            RegistrationDate = DateTime.UtcNow,
+            RegistrationDate = DateTimeOffset.UtcNow,
             IdNotificationCategory = notificationCategory.Id,
             Title = request.Title,
             Message = request.Message,
@@ -71,7 +71,7 @@ public class NotificationService
             Console.WriteLine(ex.Message);
         }
 
-        notification.SentDate = DateTime.UtcNow;
+        notification.SentDate = DateTimeOffset.UtcNow;
         await notificationRepository.UpdateAsync(notification, cancellationToken);
     }
 
@@ -92,7 +92,7 @@ public class NotificationService
         if(isRead && !notification.SentDate.HasValue)
             throw new ArgumentInvalidException(nameof(isRead), "Уведомление не может быть прочитано");
         
-        notification.ReadDate = isRead ? DateTime.UtcNow : null;
+        notification.ReadDate = isRead ? DateTimeOffset.UtcNow : null;
 
         await notificationRepository.UpdateAsync(notification,
             cancellationToken);
@@ -119,7 +119,7 @@ public class NotificationService
 
         var tasks = notifications.Select(notification =>
         {
-            notification.SentDate = DateTime.UtcNow;
+            notification.SentDate = DateTimeOffset.UtcNow;
             return notificationRepository.UpdateAsync(notification, cancellationToken);
         });
 
diff --git a/AsbCloudDb/Migrations/AsbCloudDbContextModelSnapshot.cs b/AsbCloudDb/Migrations/AsbCloudDbContextModelSnapshot.cs
index 8bd03355..9c6590fb 100644
--- a/AsbCloudDb/Migrations/AsbCloudDbContextModelSnapshot.cs
+++ b/AsbCloudDb/Migrations/AsbCloudDbContextModelSnapshot.cs
@@ -1581,17 +1581,17 @@ namespace AsbCloudDb.Migrations
                         .HasColumnName("message")
                         .HasComment("Сообщение уведомления");
 
-                    b.Property<DateTime?>("ReadDate")
+                    b.Property<DateTimeOffset?>("ReadDate")
                         .HasColumnType("timestamp with time zone")
                         .HasColumnName("read_date")
                         .HasComment("Дата прочтения уведомления");
 
-                    b.Property<DateTime>("RegistrationDate")
+                    b.Property<DateTimeOffset>("RegistrationDate")
                         .HasColumnType("timestamp with time zone")
                         .HasColumnName("registration_date")
                         .HasComment("Дата регистрации уведомления");
 
-                    b.Property<DateTime?>("SentDate")
+                    b.Property<DateTimeOffset?>("SentDate")
                         .HasColumnType("timestamp with time zone")
                         .HasColumnName("sent_date")
                         .HasComment("Дата отправки уведомления");
diff --git a/AsbCloudDb/Model/Notification.cs b/AsbCloudDb/Model/Notification.cs
index 09f718b1..bed84a2b 100644
--- a/AsbCloudDb/Model/Notification.cs
+++ b/AsbCloudDb/Model/Notification.cs
@@ -25,13 +25,13 @@ public class Notification : IId
 	public string Message { get; set; } = null!;
 
 	[Column("registration_date"), Comment("Дата регистрации уведомления")]
-	public DateTime RegistrationDate { get; set; }
+	public DateTimeOffset RegistrationDate { get; set; }
 
 	[Column("sent_date"), Comment("Дата отправки уведомления")]
-	public DateTime? SentDate { get; set; }
+	public DateTimeOffset? SentDate { get; set; }
 	
 	[Column("read_date"), Comment("Дата прочтения уведомления")]
-	public DateTime? ReadDate { get; set; }
+	public DateTimeOffset? ReadDate { get; set; }
 	
 	[Column("id_transport_type"), Comment("Id типа доставки уведомления")]
 	public int IdTransportType { get; set; }
diff --git a/AsbCloudInfrastructure/Background/WorkToSendEmail.cs b/AsbCloudInfrastructure/Background/WorkToSendEmail.cs
index 57605438..ef8048e9 100644
--- a/AsbCloudInfrastructure/Background/WorkToSendEmail.cs
+++ b/AsbCloudInfrastructure/Background/WorkToSendEmail.cs
@@ -27,7 +27,7 @@ namespace AsbCloudInfrastructure.Background
 
             await notificationService.SendAsync(notification, token);
 
-            notification.SentDate = DateTime.UtcNow;
+            notification.SentDate = DateTimeOffset.UtcNow;
             await notificationRepository.UpdateAsync(notification, token);
 
         }
diff --git a/AsbCloudInfrastructure/Repository/NotificationRepository.cs b/AsbCloudInfrastructure/Repository/NotificationRepository.cs
index 6f1e4a98..7e184f02 100644
--- a/AsbCloudInfrastructure/Repository/NotificationRepository.cs
+++ b/AsbCloudInfrastructure/Repository/NotificationRepository.cs
@@ -110,10 +110,10 @@ public class NotificationRepository : CrudRepositoryBase<NotificationDto, Notifi
 			query = query.Where(n => n.IdNotificationCategory == request.IdCategory.Value);
 
 		if (request.LtSentDate.HasValue)
-			query = query.Where(n => n.SentDate <= request.LtSentDate.Value);
+			query = query.Where(n => n.SentDate <= request.LtSentDate.Value.ToUniversalTime());
 		
 		if (request.LtReadDate.HasValue)
-			query = query.Where(n => n.ReadDate <= request.LtReadDate.Value);
+			query = query.Where(n => n.ReadDate <= request.LtReadDate.Value.ToUniversalTime());
 		
 		dbContext.Notifications.RemoveRange(query);
 
diff --git a/AsbCloudWebApi.Tests/Services/Notification/EmailNotificationTransportServiceTests.cs b/AsbCloudWebApi.Tests/Services/Notification/EmailNotificationTransportServiceTests.cs
index 724f1e7b..5b6bcb1d 100644
--- a/AsbCloudWebApi.Tests/Services/Notification/EmailNotificationTransportServiceTests.cs
+++ b/AsbCloudWebApi.Tests/Services/Notification/EmailNotificationTransportServiceTests.cs
@@ -26,7 +26,7 @@ namespace AsbCloudWebApi.Tests.Services.Notification
             IdUser = 1,
             IdTransportType = 1,
             IdState = 0,
-            RegistrationDate = DateTime.Now,
+            RegistrationDate = DateTimeOffset.Now,
             IdNotificationCategory = 10000,
         };
         private readonly UserExtendedDto user = new UserExtendedDto()
diff --git a/AsbCloudWebApi/SignalR/Services/NotificationPublisher.cs b/AsbCloudWebApi/SignalR/Services/NotificationPublisher.cs
index 6799e71d..05c93a29 100644
--- a/AsbCloudWebApi/SignalR/Services/NotificationPublisher.cs
+++ b/AsbCloudWebApi/SignalR/Services/NotificationPublisher.cs
@@ -35,7 +35,7 @@ public class NotificationPublisher
 		{
 			foreach (var notification in groupedNotifications)
 			{
-				notification.SentDate = DateTime.UtcNow;
+				notification.SentDate = DateTimeOffset.UtcNow;
 			}
 
 			var notifications = groupedNotifications.Select(n => n);