diff --git a/Src/Dlhis.ScheduledTask/Jobs/CreateGetUploadRecordJob.cs b/Src/Dlhis.ScheduledTask/Jobs/CreateGetUploadRecordJob.cs
index f62dcaee..e3da3148 100644
--- a/Src/Dlhis.ScheduledTask/Jobs/CreateGetUploadRecordJob.cs
+++ b/Src/Dlhis.ScheduledTask/Jobs/CreateGetUploadRecordJob.cs
@@ -32,7 +32,7 @@ public class CreateGetUploadRecordJob : BaseJob
 
             if (deviceTask == null)
             {
-                deviceTask = new DeviceTaskEntity
+                await DbContext.InsertAsync(new DeviceTaskEntity
                 {
                     DeviceUniqueNo = device.UniqueNo,
                     Status = DeviceTaskStatusEnumType.Wait,
@@ -42,9 +42,7 @@ public class CreateGetUploadRecordJob : BaseJob
                     Type = DeviceTaskEnumType.UploadRecord,
                     Priority = 50,
                     Source = "定时任务创建设备获取通行记录任务"
-                };
-
-                await DbContext.InsertAsync(deviceTask);
+                });
             }
             else
             {
diff --git a/Src/Dlhis.ScheduledTask/Jobs/CreateSyncServerDateTimeJob.cs b/Src/Dlhis.ScheduledTask/Jobs/CreateSyncServerDateTimeJob.cs
index 08f60d2e..493518d8 100644
--- a/Src/Dlhis.ScheduledTask/Jobs/CreateSyncServerDateTimeJob.cs
+++ b/Src/Dlhis.ScheduledTask/Jobs/CreateSyncServerDateTimeJob.cs
@@ -17,32 +17,45 @@ public class CreateSyncServerDateTimeJob : BaseJob
 
     protected override async Task RunAsync(IServiceProvider serviceProvider)
     {
-        var deviceUniqueNos = await DbContext.Queryable<DeviceTaskEntity>()
-            .Where(x => x.Status == DeviceTaskStatusEnumType.Wait || x.Status == DeviceTaskStatusEnumType.Process)
-            .Where(x => x.Type == DeviceTaskEnumType.SyncDateTime)
-            .Select(x => x.DeviceUniqueNo)
-            .Distinct()
-            .ToListAsync();
-
         var devices = await DbContext.Queryable<DeviceEntity>()
-            .Where(x => !deviceUniqueNos.Contains(x.UniqueNo))
             .Where(x => x.Enable)
             .ToListAsync();
 
-        var tasks = devices.Select(x => new DeviceTaskEntity
+        foreach (var device in devices)
         {
-            DeviceUniqueNo = x.UniqueNo,
-            Status = DeviceTaskStatusEnumType.Wait,
+            var deviceTask = await DbContext.Queryable<DeviceTaskEntity>()
+                .Where(x => x.DeviceUniqueNo == device.UniqueNo)
+                .Where(x => x.Type == DeviceTaskEnumType.SyncDateTime)
+                .OrderByDescending(x => x.ModifiedTime)
+                .FirstAsync();
 
-            TenantId = x.TenantId,
-            Version = 0,
-            UserNo = string.Empty,
-            Type = DeviceTaskEnumType.SyncDateTime,
-            DeviceType = x.Type,
-            Priority = 49,
-            Source = "定时任务创建设备同步时间任务"
-        }).ToList();
+            if (deviceTask == null)
+            {
+                await DbContext.InsertAsync(new DeviceTaskEntity
+                {
+                    DeviceUniqueNo = device.UniqueNo,
+                    Status = DeviceTaskStatusEnumType.Wait,
+                    TenantId = device.TenantId,
+                    Version = 0,
+                    UserNo = string.Empty,
+                    Type = DeviceTaskEnumType.SyncDateTime,
+                    DeviceType = device.Type,
+                    Priority = 49,
+                    Source = "定时任务创建设备同步时间任务"
+                });
+            }
+            else
+            {
+                if (deviceTask.Status == DeviceTaskStatusEnumType.Success)
+                {
+                    deviceTask.Status = DeviceTaskStatusEnumType.Wait;
+                    deviceTask.Version = 0;
+                    deviceTask.CreateTime = DateTime.Now;
+                    deviceTask.ModifiedTime = DateTime.Now;
 
-        await DbContext.InsertAsync(tasks);
+                    await DbContext.UpdateAsync(deviceTask);
+                }
+            }
+        }
     }
 }
\ No newline at end of file
diff --git a/Src/Dlhis.ScheduledTask/TaskAssignment/Services/Implements/AssignmentService.cs b/Src/Dlhis.ScheduledTask/TaskAssignment/Services/Implements/AssignmentService.cs
index 7e0bf49d..36e98b17 100644
--- a/Src/Dlhis.ScheduledTask/TaskAssignment/Services/Implements/AssignmentService.cs
+++ b/Src/Dlhis.ScheduledTask/TaskAssignment/Services/Implements/AssignmentService.cs
@@ -241,7 +241,7 @@ public class AssignmentService : IAssignmentService
 
     private async Task<List<TaskDto>> GetDataAsync(DeviceTaskGetRequest request)
     {
-        var limitTime = DateTime.Now.AddDays(-5);
+        var limitTime = DateTime.Now.AddDays(-3);
 
         var data = await CommonHelper.RetryAsync(async () =>
         {
diff --git a/Src/Dlhis.ScheduledTask/TaskAssignment/Services/Implements/DeviceTaskAssignmentService.cs b/Src/Dlhis.ScheduledTask/TaskAssignment/Services/Implements/DeviceTaskAssignmentService.cs
index 368d0bc0..d8b3ab34 100644
--- a/Src/Dlhis.ScheduledTask/TaskAssignment/Services/Implements/DeviceTaskAssignmentService.cs
+++ b/Src/Dlhis.ScheduledTask/TaskAssignment/Services/Implements/DeviceTaskAssignmentService.cs
@@ -106,7 +106,7 @@ public class DeviceTaskAssignmentService : IDeviceTaskAssignmentService
 
     public async Task<Pagination<DeviceTaskAssignmentResponse>> GetPageWarningAsync(DeviceTaskAssignmentRequest request)
     {
-        var limitTime = DateTime.Now.AddDays(-5);
+        var limitTime = DateTime.Now.AddDays(-3);
 
         var page = await _dbContext.Queryable<DeviceTaskEntity>()
             .LeftJoin<DeviceEntity>((deviceTask, device) => deviceTask.DeviceUniqueNo == device.UniqueNo)