diff --git a/AsbCloudInfrastructure/Extensions.cs b/AsbCloudInfrastructure/Extensions.cs
deleted file mode 100644
index acd67990..00000000
--- a/AsbCloudInfrastructure/Extensions.cs
+++ /dev/null
@@ -1,15 +0,0 @@
-namespace System
-{
-    public static class Extentions
-    {
-        public static DateOnly ExtractDateOnly(this DateTime date)
-        {
-            return new DateOnly(date.Year, date.Month, date.Day);
-        }
-
-        public static DateOnly ExtractDateOnly(this DateTimeOffset date)
-        {
-            return new DateOnly(date.Date.Year, date.Date.Month, date.Date.Day);
-        }
-    }
-}
diff --git a/AsbCloudInfrastructure/Services/DailyReport/DailyReportService.cs b/AsbCloudInfrastructure/Services/DailyReport/DailyReportService.cs
index cdaf137c..2fdae738 100644
--- a/AsbCloudInfrastructure/Services/DailyReport/DailyReportService.cs
+++ b/AsbCloudInfrastructure/Services/DailyReport/DailyReportService.cs
@@ -35,24 +35,22 @@ namespace AsbCloudInfrastructure.Services.DailyReport
 
             var query = db.DailyReports.Where(r => r.IdWell == idWell);
 
-            DateTimeOffset ExtractDate(DateTime dateTime)
+            DateOnly ExtractDate(DateTime dateTime)
             {
                 var dateTimeOffset = dateTime.ToUtcDateTimeOffset(well!.Timezone.Hours);
-                var date = new DateTimeOffset(dateTimeOffset.Year, dateTimeOffset.Month, dateTimeOffset.Day, 0, 0, 0, TimeSpan.Zero);
+                var date = new DateOnly(dateTimeOffset.Year, dateTimeOffset.Month, dateTimeOffset.Day);
                 return date;
             }
 
             if (begin is not null)
             {
-                var beginUTC = ExtractDate(begin.Value);
-                var beginDateOnly = beginUTC.ExtractDateOnly();
+                var beginDateOnly = ExtractDate(begin.Value);
                 query = query.Where(d => d.StartDate >= beginDateOnly);
             }
 
             if (end is not null)
             {
-                var endUTC = ExtractDate(end.Value);
-                var endDateOnly = endUTC.ExtractDateOnly();
+                var endDateOnly = ExtractDate(end.Value);
                 query = query.Where(d => d.StartDate <= endDateOnly);
             }
 
@@ -76,7 +74,7 @@ namespace AsbCloudInfrastructure.Services.DailyReport
             if (well is null || well.Timezone is null)
                 throw new ArgumentInvalidException("idWell doesn`t exist", nameof(idWell));
 
-            var startDateOnly = startDate.ExtractDateOnly();
+            var startDateOnly = DateOnly.FromDateTime(startDate);
 
             var entity = await db.DailyReports
                 .FirstOrDefaultAsync(r => r.IdWell == idWell && r.StartDate == startDateOnly, token);
@@ -127,7 +125,7 @@ namespace AsbCloudInfrastructure.Services.DailyReport
 
         public async Task<int> UpdateBlockAsync<Tdto>(int idWell, DateTime date, Tdto dto, CancellationToken token)
         {
-            var startDateOnly = date.ExtractDateOnly();
+            var startDateOnly = DateOnly.FromDateTime(date);
             var entity = await db.DailyReports.FirstOrDefaultAsync(r => r.IdWell == idWell && r.StartDate == startDateOnly, token);
 
             if (entity is null)