diff --git a/AsbCloudWebApi/Controllers/Subsystems/SubsystemOperationTimeController.cs b/AsbCloudWebApi/Controllers/Subsystems/SubsystemOperationTimeController.cs
index 39d60ea9..efa60638 100644
--- a/AsbCloudWebApi/Controllers/Subsystems/SubsystemOperationTimeController.cs
+++ b/AsbCloudWebApi/Controllers/Subsystems/SubsystemOperationTimeController.cs
@@ -1,11 +1,9 @@
 using AsbCloudApp.Data;
 using AsbCloudApp.Data.Subsystems;
-using AsbCloudApp.Exceptions;
 using AsbCloudApp.Requests;
 using AsbCloudApp.Services;
 using AsbCloudApp.Services.Subsystems;
 using AsbCloudDb.Model;
-using AsbCloudInfrastructure;
 using Microsoft.AspNetCore.Authorization;
 using Microsoft.AspNetCore.Mvc;
 using System;
@@ -56,7 +54,6 @@ namespace AsbCloudWebApi.Controllers.Subsystems
         {
             if (!await UserHasAccesToWellAsync(request.IdWell, token))
                 return Forbid();
-            await CustomValidate(request, token);
             var subsystemResult = await subsystemOperationTimeService.GetStatAsync(request, token);
             return Ok(subsystemResult);
         }
@@ -133,7 +130,6 @@ namespace AsbCloudWebApi.Controllers.Subsystems
         {
             if (!await UserHasAccesToWellAsync(request.IdWell, token))
                 return Forbid();
-            await CustomValidate(request, token);
 
             var result = await subsystemOperationTimeService.GetOperationTimeAsync(request, token);
             return Ok(result);
@@ -155,7 +151,6 @@ namespace AsbCloudWebApi.Controllers.Subsystems
         {
             if (!await UserHasAccesToWellAsync(request.IdWell, token))
                 return Forbid();
-            await CustomValidate(request, token);
             var result = await subsystemOperationTimeService.DeleteAsync(request, token);
             return Ok(result);
         }
@@ -180,24 +175,5 @@ namespace AsbCloudWebApi.Controllers.Subsystems
                 return true;
             return false;
         }
-
-        /// <summary>
-        /// Валидирует запрос и бросает исключение ArgumentInvalidException 
-        /// </summary>
-        /// <param name="request"></param>
-        /// <param name="token"></param>
-        /// <returns></returns>
-        /// <exception cref="ArgumentException"></exception>
-        private async Task CustomValidate(SubsystemOperationTimeRequest request, CancellationToken token)
-        {
-            var well = await wellService.GetOrDefaultAsync(request.IdWell, token);
-            if (well is not null && request.LtDate.HasValue)
-            {
-                var ltDate = request.LtDate.Value;
-                var utcDateRequest = ltDate.ToUtcDateTimeOffset(well.Timezone.Hours);
-                if (utcDateRequest.AddHours(2) > DateTime.UtcNow)
-                    throw new ArgumentInvalidException(nameof(request.LtDate), "Запрашиваемый диапазон должен заканчиваться за 2 часа до текущего времени");
-            }
-        }
     }
 }