diff --git a/AsbCloudApp/Data/ScheduleDto.cs b/AsbCloudApp/Data/ScheduleDto.cs
index 84cbe515..a8c8d652 100644
--- a/AsbCloudApp/Data/ScheduleDto.cs
+++ b/AsbCloudApp/Data/ScheduleDto.cs
@@ -39,13 +39,13 @@ namespace AsbCloudApp.Data
         /// Начало бурения
         /// </summary>
         [Required]
-        public DateTime DrillStart { get; set; }
+        public DateTimeOffset DrillStart { get; set; }
 
         /// <summary>
         /// Конец бурения
         /// </summary>
         [Required]
-        public DateTime DrillEnd { get; set; }
+        public DateTimeOffset DrillEnd { get; set; }
 
         /// <summary>
         /// Бурильщик
diff --git a/AsbCloudInfrastructure/Repository/ScheduleRepository.cs b/AsbCloudInfrastructure/Repository/ScheduleRepository.cs
index e7c2aa1f..7c7e6491 100644
--- a/AsbCloudInfrastructure/Repository/ScheduleRepository.cs
+++ b/AsbCloudInfrastructure/Repository/ScheduleRepository.cs
@@ -82,10 +82,9 @@ namespace AsbCloudInfrastructure.Repository
 
         protected override Schedule Convert(ScheduleDto dto)
         {
-            var hoursOffset = wellService.GetTimezone(dto.IdWell).Hours;
             var entity = base.Convert(dto);
-            entity.DrillStart = dto.DrillStart.ToUtcDateTimeOffset(hoursOffset);
-            entity.DrillEnd = dto.DrillEnd.ToUtcDateTimeOffset(hoursOffset);
+            entity.DrillStart = dto.DrillStart.ToUniversalTime();
+            entity.DrillEnd = dto.DrillEnd.ToUniversalTime();
             return entity;
         }
 
@@ -93,8 +92,8 @@ namespace AsbCloudInfrastructure.Repository
         {
             var hoursOffset = wellService.GetTimezone(entity.IdWell).Hours;
             var dto = base.Convert(entity);
-            dto.DrillStart = entity.DrillStart.ToRemoteDateTime(hoursOffset);
-            dto.DrillEnd = entity.DrillEnd.ToRemoteDateTime(hoursOffset);
+            dto.DrillStart = entity.DrillStart.ToOffset(TimeSpan.FromHours(hoursOffset));
+            dto.DrillEnd = entity.DrillEnd.ToOffset(TimeSpan.FromHours(hoursOffset));
             return dto;
         }
     }
diff --git a/AsbCloudInfrastructure/Services/DetectOperations/DetectedOperationService.cs b/AsbCloudInfrastructure/Services/DetectOperations/DetectedOperationService.cs
index b53b1cd0..b645f567 100644
--- a/AsbCloudInfrastructure/Services/DetectOperations/DetectedOperationService.cs
+++ b/AsbCloudInfrastructure/Services/DetectOperations/DetectedOperationService.cs
@@ -264,7 +264,7 @@ public class DetectedOperationService : IDetectedOperationService
               && v.DepthStart <= dto.DepthStart
               && v.DepthEnd > dto.DepthStart);
         
-        var dateStart = dto.DateStart;
+        var dateStart = dto.DateStart.ToUniversalTime();
         var timeStart = new TimeDto(dateStart);
         var driller = schedules.FirstOrDefault(s =>
             s.DrillStart <= dateStart &&
diff --git a/AsbCloudWebApi.Tests/Services/DailyReportServiceTest.cs b/AsbCloudWebApi.Tests/Services/DailyReportServiceTest.cs
index 58f23ccc..69473ebd 100644
--- a/AsbCloudWebApi.Tests/Services/DailyReportServiceTest.cs
+++ b/AsbCloudWebApi.Tests/Services/DailyReportServiceTest.cs
@@ -178,8 +178,8 @@ public class DailyReportServiceTest
         IdWell = idWell,
         ShiftStart = new TimeDto(1),
         ShiftEnd = new TimeDto(5),
-        DrillStart = new DateTime(2023, 01, 26),
-        DrillEnd = new DateTime(2023, 12, 26),
+        DrillStart = new DateTimeOffset(2023, 01, 26, 0, 0, 0, TimeSpan.Zero),
+        DrillEnd = new DateTimeOffset(2023, 12, 26, 0, 0, 0, TimeSpan.Zero),
         Driller = new()
         {
             Name = "Иван",