diff --git a/DTLib/Logging/FileLogger.cs b/DTLib/Logging/FileLogger.cs
index f012a22..6b73ad3 100644
--- a/DTLib/Logging/FileLogger.cs
+++ b/DTLib/Logging/FileLogger.cs
@@ -11,7 +11,7 @@ public class FileLogger : IDisposable
     }
 
     public FileLogger(string dir, string programName)
-        : this($"{dir}{Путь.Разд}{programName}_{DateTime.Now.ToString(MyTimeFormat.Instance)}.log") { }
+        : this($"{dir}{Путь.Разд}{programName}_{DateTime.Now.ToString(MyTimeFormat.ForFileNames)}.log") { }
     
     public string LogfileName { get; protected set; }
     public System.IO.FileStream LogfileStream { get; protected set; }
@@ -22,7 +22,7 @@ public class FileLogger : IDisposable
     {
         lock (LogfileStream)
         {
-            LastLogMessageTime = DateTime.Now.ToString(MyTimeFormat.Instance);
+            LastLogMessageTime = DateTime.Now.ToString(MyTimeFormat.ForText);
             LogfileStream.WriteByte('['.ToByte());
             LogfileStream.Write(LastLogMessageTime.ToBytes());
             LogfileStream.Write("]: ".ToBytes());
diff --git a/DTLib/Logging/Tester.cs b/DTLib/Logging/Tester.cs
index ce7e99d..36709e9 100644
--- a/DTLib/Logging/Tester.cs
+++ b/DTLib/Logging/Tester.cs
@@ -13,6 +13,6 @@ public static class Tester
             operation();
         clock.Stop();
         double time=(double)(clock.ElapsedTicks)/Stopwatch.Frequency/repeats;
-        Log("y",$"operation ","b",op_name,"y"," lasted ","b",time.ToString(MyTimeFormat.Instance),"y"," seconds");
+        Log("y",$"operation ","b",op_name,"y"," lasted ","b",time.ToString(MyTimeFormat.ForText),"y"," seconds");
     }
 }
\ No newline at end of file
diff --git a/DTLib/MyTimeFormat.cs b/DTLib/MyTimeFormat.cs
index 677db5b..765b5c8 100644
--- a/DTLib/MyTimeFormat.cs
+++ b/DTLib/MyTimeFormat.cs
@@ -1,12 +1,7 @@
 namespace DTLib;
 
-public class MyTimeFormat : IFormatProvider
+public static class MyTimeFormat
 {
-    public static MyTimeFormat Instance=new();
-    public object GetFormat(Type formatType)
-    {
-        if(formatType==typeof(DateTime))
-            return "yyyy-MM-dd_HH-mm-ss+zz";
-        else throw new FormatException();
-    }
+    public const string ForFileNames="yyyy.MM.dd_HH-mm-ss_zz";
+    public const string ForText="yyyy.MM.dd HH:mm:ss zz";
 }
\ No newline at end of file