diff --git a/Src/Asp.NetCore2/SqlSugar/Realization/Dm/SqlBuilder/DmUpdateBuilder.cs b/Src/Asp.NetCore2/SqlSugar/Realization/Dm/SqlBuilder/DmUpdateBuilder.cs
index f9ad9476a..1d1fef49d 100644
--- a/Src/Asp.NetCore2/SqlSugar/Realization/Dm/SqlBuilder/DmUpdateBuilder.cs
+++ b/Src/Asp.NetCore2/SqlSugar/Realization/Dm/SqlBuilder/DmUpdateBuilder.cs
@@ -86,7 +86,14 @@ namespace SqlSugar
                     {
                         date = UtilMethods.GetMinDate(this.Context.CurrentConnectionConfig);
                     }
-                    return "'" + date.ToString("yyyy-MM-dd HH:mm:ss.fff") + "'";
+                    if (this.Context.CurrentConnectionConfig?.MoreSettings?.DisableMillisecond == true)
+                    {
+                        return "to_date('" + date.ToString("yyyy-MM-dd HH:mm:ss") + "', 'YYYY-MM-DD HH24:MI:SS')  ";
+                    }
+                    else
+                    {
+                        return "to_timestamp('" + date.ToString("yyyy-MM-dd HH:mm:ss.ffffff") + "', 'YYYY-MM-DD HH24:MI:SS.FF') ";
+                    }
                 }
                 else if (type.IsEnum())
                 {