diff --git a/src/measure/utTc.erl b/src/measure/utTc.erl
index 3adacd0..d5c14ef 100644
--- a/src/measure/utTc.erl
+++ b/src/measure/utTc.erl
@@ -14,8 +14,9 @@
 %% utTc:tm(ProcessesCount, LoopTimes, Module, Function, ArgsList).
 
 doTc(M, F, A) ->
-   {Microsecond, _} = timer:tc(M, F, A),
-   Microsecond.
+   StartTime = system_time(nanosecond),
+   M:F(A),
+   system_time(nanosecond) - StartTime.
 
 distribution(List, Aver) ->
    distribution(List, Aver, 0, 0).
@@ -39,10 +40,10 @@ ts(LoopTime, M, F, A) ->
    io:format("execute Fun :~p~n", [F]),
    io:format("execute Mod :~p~n", [M]),
    io:format("execute LoopTime:~p~n", [LoopTime]),
-   io:format("MaxTime: ~10s(us) ~10s(s)~n", [integer_to_binary(Max), float_to_binary(Max / 1000000, [{decimals, 6}, compact])]),
-   io:format("MinTime: ~10s(us) ~10s(s)~n", [integer_to_binary(Min), float_to_binary(Min / 1000000, [{decimals, 6}, compact])]),
-   io:format("SumTime: ~10s(us) ~10s(s)~n", [integer_to_binary(Sum), float_to_binary(Sum / 1000000, [{decimals, 6}, compact])]),
-   io:format("AvgTime: ~10s(us) ~10s(s)~n", [float_to_binary(Aver, [{decimals, 6}, compact]), float_to_binary(Aver / 1000000, [{decimals, 6}, compact])]),
+   io:format("MaxTime: ~10s(ns) ~10s(s)~n", [integer_to_binary(Max), float_to_binary(Max / 1000000000, [{decimals, 6}, compact])]),
+   io:format("MinTime: ~10s(ns) ~10s(s)~n", [integer_to_binary(Min), float_to_binary(Min / 1000000000, [{decimals, 6}, compact])]),
+   io:format("SumTime: ~10s(ns) ~10s(s)~n", [integer_to_binary(Sum), float_to_binary(Sum / 1000000000, [{decimals, 6}, compact])]),
+   io:format("AvgTime: ~10s(ns) ~10s(s)~n", [float_to_binary(Aver, [{decimals, 6}, compact]), float_to_binary(Aver / 1000000000, [{decimals, 6}, compact])]),
    io:format("Grar   : ~10s(cn) ~10s(~s)~n", [integer_to_binary(Greater), float_to_binary(Greater / LoopTime, [{decimals, 2}]), <<"%">>]),
    io:format("Less   : ~10s(cn) ~10s(~s)~n", [integer_to_binary(Less), float_to_binary(Less / LoopTime, [{decimals, 2}]), <<"%">>]),
    io:format("=====================~n").
@@ -53,22 +54,22 @@ loopTs(0, _M, _F, _A, LoopTime, Max, Min, Sum, List) ->
    {Greater, Less} = distribution(List, Aver),
    {Max, Min, Sum, Aver, Greater, Less};
 loopTs(Index, M, F, A, LoopTime, Max, Min, Sum, List) ->
-   Microsecond = doTc(M, F, A),
-   NewSum = Sum + Microsecond,
+   Nanosecond = doTc(M, F, A),
+   NewSum = Sum + Nanosecond,
    if
       Max == 0 ->
-         NewMax = NewMin = Microsecond;
-      Max < Microsecond ->
-         NewMax = Microsecond,
+         NewMax = NewMin = Nanosecond;
+      Max < Nanosecond ->
+         NewMax = Nanosecond,
          NewMin = Min;
-      Min > Microsecond ->
+      Min > Nanosecond ->
          NewMax = Max,
-         NewMin = Microsecond;
+         NewMin = Nanosecond;
       true ->
          NewMax = Max,
          NewMin = Min
    end,
-   loopTs(Index - 1, M, F, A, LoopTime, NewMax, NewMin, NewSum, [Microsecond | List]).
+   loopTs(Index - 1, M, F, A, LoopTime, NewMax, NewMin, NewSum, [Nanosecond | List]).
 
 
 %% ===================================================================
@@ -84,10 +85,10 @@ tm(ProcCnt, LoopTime, M, F, A) ->
    io:format("execute Mod :~p~n", [M]),
    io:format("execute LoopTime:~p~n", [LoopTime]),
    io:format("execute ProcCnts:~p~n", [ProcCnt]),
-   io:format("MaxTime: ~10s(us) ~10s(s)~n", [integer_to_binary(Max), float_to_binary(Max / 1000000, [{decimals, 6}, compact])]),
-   io:format("MinTime: ~10s(us) ~10s(s)~n", [integer_to_binary(Min), float_to_binary(Min / 1000000, [{decimals, 6}, compact])]),
-   io:format("SumTime: ~10s(us) ~10s(s)~n", [integer_to_binary(Sum), float_to_binary(Sum / 1000000, [{decimals, 6}, compact])]),
-   io:format("AvgTime: ~10s(us) ~10s(s)~n", [float_to_binary(Aver, [{decimals, 6}, compact]), float_to_binary(Aver / 1000000, [{decimals, 6}, compact])]),
+   io:format("MaxTime: ~10s(ns) ~10s(s)~n", [integer_to_binary(Max), float_to_binary(Max / 1000000000, [{decimals, 6}, compact])]),
+   io:format("MinTime: ~10s(ns) ~10s(s)~n", [integer_to_binary(Min), float_to_binary(Min / 1000000000, [{decimals, 6}, compact])]),
+   io:format("SumTime: ~10s(ns) ~10s(s)~n", [integer_to_binary(Sum), float_to_binary(Sum / 1000000000, [{decimals, 6}, compact])]),
+   io:format("AvgTime: ~10s(ns) ~10s(s)~n", [float_to_binary(Aver, [{decimals, 6}, compact]), float_to_binary(Aver / 1000000000, [{decimals, 6}, compact])]),
    io:format("Grar   : ~10s(cn) ~10s(~s)~n", [integer_to_binary(Greater), float_to_binary(Greater / LoopTime, [{decimals, 2}]), <<"%">>]),
    io:format("Less   : ~10s(cn) ~10s(~s)~n", [integer_to_binary(Less), float_to_binary(Less / LoopTime, [{decimals, 2}]), <<"%">>]),
    io:format("=====================~n").