diff --git a/AsbCloudApp/Data/FileInfoDto.cs b/AsbCloudApp/Data/FileInfoDto.cs
index 8e006661..ab44b317 100644
--- a/AsbCloudApp/Data/FileInfoDto.cs
+++ b/AsbCloudApp/Data/FileInfoDto.cs
@@ -43,7 +43,7 @@ namespace AsbCloudApp.Data
         /// дата загрузки
         /// </summary>
         [Required]
-        public DateTime UploadDate { get; set; }
+        public DateTimeOffset UploadDate { get; set; }
 
         /// <summary>
         /// размер в байтах
diff --git a/AsbCloudInfrastructure/Repository/FileRepository.cs b/AsbCloudInfrastructure/Repository/FileRepository.cs
index 391f5201..dd6cc8ea 100644
--- a/AsbCloudInfrastructure/Repository/FileRepository.cs
+++ b/AsbCloudInfrastructure/Repository/FileRepository.cs
@@ -278,7 +278,7 @@ namespace AsbCloudInfrastructure.Repository
         private static FileInfoDto Convert(FileInfo entity, double timezoneOffset)
         {
             var dto = entity.Adapt<FileInfoDto>();
-            dto.UploadDate = entity.UploadDate.ToRemoteDateTime(timezoneOffset);
+            dto.UploadDate = entity.UploadDate.ToOffset(TimeSpan.FromHours(timezoneOffset));
             dto.FileMarks = entity.FileMarks.Select(m =>
             {
                 var mark = m.Adapt<FileMarkDto>();
diff --git a/AsbCloudInfrastructure/Services/DrillingProgram/DrillingProgramService.cs b/AsbCloudInfrastructure/Services/DrillingProgram/DrillingProgramService.cs
index 3e8349ad..644a62cb 100644
--- a/AsbCloudInfrastructure/Services/DrillingProgram/DrillingProgramService.cs
+++ b/AsbCloudInfrastructure/Services/DrillingProgram/DrillingProgramService.cs
@@ -480,7 +480,7 @@ namespace AsbCloudInfrastructure.Services.DrillingProgram
                     IdWell = fileEntity.IdWell,
                     Name = fileEntity.Name,
                     Size = fileEntity.Size,
-                    UploadDate = fileEntity.UploadDate.ToRemoteDateTime(timezoneOffset),
+                    UploadDate = fileEntity.UploadDate.ToOffset(TimeSpan.FromHours(timezoneOffset)),
                 };
 
                 var marks = fileEntity.FileMarks?.Where(m => !m.IsDeleted);
diff --git a/AsbCloudInfrastructure/Services/ReportService.cs b/AsbCloudInfrastructure/Services/ReportService.cs
index fd7d86a3..e1c75d62 100644
--- a/AsbCloudInfrastructure/Services/ReportService.cs
+++ b/AsbCloudInfrastructure/Services/ReportService.cs
@@ -106,7 +106,7 @@ public class ReportService : IReportService
                 IdWell = p.File.IdWell,
                 Name = p.File.Name,
                 Size = p.File.Size,
-                UploadDate = p.File.UploadDate.ToRemoteDateTime(timezoneOffset),
+                UploadDate = p.File.UploadDate.ToOffset(TimeSpan.FromHours(timezoneOffset)),
             },
             IdWell = p.IdWell,
             Date = p.File.UploadDate.ToRemoteDateTime(timezoneOffset),
diff --git a/AsbCloudWebApi.Tests/Services/FileServiceTest.cs b/AsbCloudWebApi.Tests/Services/FileServiceTest.cs
index 311e483f..b1200160 100644
--- a/AsbCloudWebApi.Tests/Services/FileServiceTest.cs
+++ b/AsbCloudWebApi.Tests/Services/FileServiceTest.cs
@@ -39,7 +39,7 @@ public class FileServiceTest
         IdCategory = idCategory,
         Name = fileName,
         Size = 0,
-        UploadDate = DateTime.Now
+        UploadDate = DateTimeOffset.Now
     };
 
     private static FileMarkDto fileMark = new()