Calculate time difference in Windows batch file

Question

How can I get the difference between two times in a Batch file  Because I want to print it in an HTML file   I thought this would be possible  but it isn t   Set  tijd  time   echo  tijd  echo  time - tijd    Results   11 07 48 85 11 16 58 99-11 07 48 85   But what I want is   00 09 10 14   Or 9 minutes and 10 seconds or 550 seconds

User · Answer

Aacini s latest code showcases an awesome variable substitution method  It s a shame it s not Regional format proof - it fails on so many levels  Here s a short fix that keeps the substitution math method intact        echo off setlocal EnableDelayedExpansion  set  startTime  time   0    amp  rem AveYo  fix single digit hour  set  P   Any process here      set  endTime  time   0    amp  rem AveYo  fix single digit hour  rem Aveyo  Regional format fix with just one aditional line for  f  tokens 1-3 delims 0123456789    i in    endTime    do set  COLON   i   amp  set  DOT   k    rem Get elapsed time  set  end  endTime  DOT    100  100 1    amp  set  start  startTime  DOT    100  100 1   set  A  elap     10 end  COLON    100  60 1   100 -    10 start  COLON    100  60 1   100    rem Aveyo  Fix 24 hours  set  A  elap  elap - 8640000-    rem Convert elapsed time to HH MM SS CC format  set  A  cc elap  100 100 elap  100 ss elap  60 100 elap  60 mm elap  60 100 hh elap 60 100   echo Start      startTime  echo End        endTime  echo Elapsed    hh  1  COLON  mm  1  COLON  ss  1  DOT  cc  1   amp  rem AveYo  display as regional pause       Lean and Mean  TIMER with Regional format  24h and mixed input support Adapting Aacini s substitution method body  no IF s  just one FOR  my regional fix   1  File timer bat placed somewhere in  PATH  or the current dir     echo off  amp  rem  AveYo  compact timer function with Regional format  24-hours and mixed input support if not defined timer set  if not    1       call set  timer set   1   else set  timer set  TIME   0     amp  goto  eof  if not    1       call set  timer end   1   else set  timer end  TIME   0     amp  setlocal EnableDelayedExpansion for  f  tokens 1-6 delims 0123456789    i in    timer end  timer set    do  set CE   i amp set DE   k amp set CS   l amp set DS   n  set  TE  timer end  DE    100  100 1        amp  set  TS  timer set  DS    100  100 1   set A  T     10 TE  CE    100  60 1   100 -    10 TS  CS    100  60 1   100    amp  set A  T  T - 8640000-   set A  cc T  100 100 T  100 ss T  60 100 T  60 mm T  60 100 hh T 60 100  set  value  hh  1  CE  mm  1  CE  ss  1  DE  cc  1    amp  if    2      echo  value  endlocal  amp  set  timer end  value    amp  set  timer set    amp  goto  eof   Usage  timer  amp  echo start cmds  amp  timeout  t 3  amp  echo end cmds  amp  timer timer  amp  timer  23 23 23 00  timer  23 23 23 00   amp  timer timer  13 23 23 00   amp  timer  03 03 03 00  timer  amp  timer  0 00 00 00  no  amp  cmd  v on  c echo until midnight  timer end  Input can now be mixed  for those unlikely  but possible time format changes during execution  2  Function  timer bundled with the batch script  sample usage below       echo off set  TIMER call  timer   amp  rem short macro echo  echo EXAMPLE  call  timer timeout  t 3  gt nul  amp  rem Any process here   call  timer echo  echo SHORT MACRO   TIMER   amp  timeout  t 1  amp   TIMER   echo  echo TEST INPUT  set  start 22 04 04 58  set  end 04 22 44 22  echo  start    start  amp  echo  end    end call  timer   start   call  timer   end   echo   TIMER   amp   TIMER   00 00 00 00  no  echo UNTIL MIDNIGHT   timer end  echo  pause  exit  b      to test it  copy-paste both above and below code sections    rem  AveYo  compact timer function with Regional format  24-hours and mixed input support   timer Usage   call  timer  input - optional   no - optional    i Result printed on second call  saved to timer end  if not defined timer set  if not    1       call set  timer set   1   else set  timer set  TIME   0     amp  goto  eof  if not    1       call set  timer end   1   else set  timer end  TIME   0     amp  setlocal EnableDelayedExpansion for  f  tokens 1-6 delims 0123456789    i in    timer end  timer set    do  set CE   i amp set DE   k amp set CS   l amp set DS   n  set  TE  timer end  DE    100  100 1        amp  set  TS  timer set  DS    100  100 1   set A  T     10 TE  CE    100  60 1   100 -    10 TS  CS    100  60 1   100    amp  set A  T  T - 8640000-   set A  cc T  100 100 T  100 ss T  60 100 T  60 mm T  60 100 hh T 60 100  set  value  hh  1  CE  mm  1  CE  ss  1  DE  cc  1    amp  if    2      echo  value  endlocal  amp  set  timer end  value    amp  set  timer set    amp  goto  eof

User · Answer

Using a single function with the possibility of custom unit of measure or formatted  Each time the function is called without parameters we restarted the initial time    ECHO OFF  ECHO  ECHO DEMO timer function ECHO --------------------  SET DELAY 4     First we call the function without any parameters to set the starting time CALL timer     We put some code we want to measure ECHO  ECHO Making some delay  please wait    ECHO   ping -n  DELAY  -w 1 127 0 0 1  gt NUL     Now we call the function again with the desired parameters  CALL timer elapsed time  ECHO by Default    elapsed time   CALL timer elapsed time  s   ECHO in Seconds    elapsed time   CALL timer elapsed time  anything   ECHO Formatted     elapsed time    HH MM SS CS   ECHO  PAUSE      Elapsed Time Function    -----------------------------------------------------------------------    The returned value is in centiseconds  unless you enter the parameters     to be in another unit of measure or with formatted        Parameters                  lt return gt      the returned value                 formatted   s  for seconds   m  for minutes   h  for hours                              anything else for formatted output    -----------------------------------------------------------------------  timer  lt return gt   formatted      SetLocal EnableExtensions EnableDelayedExpansion      SET  t  time      SET  t   t  0         SET  t   t  0         SET  t   t  0         SET  t   t  0 2    360000     t  3 2    6000     t  6 2    100     t  9 2      SET  A  t   t          If we call the function without parameters is defined initial time     SET  r   1     IF NOT DEFINED  r           EndLocal  amp  SET TIMER START TIME   t   amp  GOTO  EOF            SET  A  t   t  -  TIMER START TIME          In the case of wanting a formatted output     SET  f   2     IF DEFINED  f            IF    f       s                 SET  A   t   t    100             ELSE               IF    f       m                     SET  A   t   t    6000                 ELSE                    IF    f       h                         SET  A   t   t    360000                     ELSE                        SET  A   h   t    360000                      SET  A   m    t  -   h    360000    6000                      SET  A   s    t  -   h    360000 -   m    6000    100                      SET  A   cs    t  -   h    360000 -   m    6000 -   s    100                        IF   h  LSS 10 SET   h 0  h                       IF   m  LSS 10 SET   m 0  m                       IF   s  LSS 10 SET   s 0  s                       IF   cs  LSS 10 SET   cs 0  cs                       SET   t   h    m    s    cs                       SET   t   t 00                                                           EndLocal  amp  SET   1   t  goto  EOF   A test with a delay of 94 sec  DEMO timer function --------------------  Making some delay  please wait     by Default   9404 in Seconds   94 Formatted    01 34 05   HH MM SS CS   Presione una tecla para continuar

User · Answer

CMD doesn t have time arithmetic  The following code  however gives a workaround   set vid time 11 07 48 set srt time 11 16 58  REM Get time difference set length  vid time  for  f  tokens 1-3 delims     i in    length    do   set  a h  i 3600 set  a m  j 60 set  a s  k   set  a t1  h   m   s   set length  srt time  for  f  tokens 1-3 delims     i in    length    do   set  a h  i 3600 set  a m  j 60 set  a s  k   set  a t2  h   m   s  cls set  a diff  t2 - t1    Above code gives difference in seconds  To display in hh mm ss format  code below   set ss  diff  set  a hh  ss  3600  gt nul set  a mm    ss -3600  hh   60   gt nul set  a ss    ss -3600  hh  - mm  60   gt nul set  hh 0 hh    amp  set  mm 0 mm    amp  set  ss 0 ss   echo set  p  hh  -2   mm  -2   ss  -2

User · Answer

Here is my attempt to measure time difference in batch   It respects the regional format of  TIME  without taking any assumptions on type of characters for time and decimal separators   The code is commented but I will also describe it here   It is flexible so it can also be used to normalize non-standard time values as well   The main function  timediff     timediff    Input and output format is the same format as  TIME     If EndTime is less than StartTime then       EndTime will be treated as a time in the next day      in that case  function measures time difference between a maximum distance of 24 hours minus 1 centisecond      time elements can have values greater than their standard maximum value ex  12 247 853 5214      provided than the total represented time does not exceed 24 360000 centiseconds      otherwise the result will not be meaningful     If EndTime is greater than or equals to StartTime then       No formal limitation applies to the value of elements       except that total represented time can not exceed 2147483647 centiseconds    timediff  lt outDiff gt   lt inStartTime gt   lt inEndTime gt        setlocal EnableDelayedExpansion     set  Input    2     3       for  F  tokens 1 3 delims 0123456789     A in    Input    do set  time delims   A  B     for  F  tokens 1-8 delims  time delims     a in    Input    do       for   A in    h1   a    m1   b    s1   c    c1   d    h2   e    m2   f    s2   g    c2   h   do           for  F  tokens 1 2 delims      A in      A   do               for  F  tokens   delims 0    B in     B   do set    A   B                      set  a   d   h2- h1  360000   m2- m1  6000   s2- s1  100   c2- c1    sign   d gt  gt 31  amp 1   d    sign 24 360000    h   d 360000    d   360000   m  d 6000   d   6000   s  d 100   c  d  100          if   h  LEQ 9 set   h 0  h       if   m  LEQ 9 set   m 0  m       if   s  LEQ 9 set   s 0  s       if   c  LEQ 9 set   c 0  c           endlocal     set    1   h  time delims  0 1   m  time delims  0 1   s  time delims  1 1   c       exit  b     Example    echo off setlocal EnableExtensions set  TIME    set  Start  TIME   REM Do some stuff here    set  End  TIME    call  timediff Elapsed Start End echo Elapsed Time   Elapsed   pause exit  b     put the  timediff function here    Explanation of the  timediff function   function prototype   timediff  lt outDiff gt   lt inStartTime gt   lt inEndTime gt    Input and output format is the same format as  TIME   It takes 3 parameters from left to right   Param1  Name of the environment variable to save the result to  Param2  Name of the environment variable to be passed to the function containing StartTime string Param3  Name of the environment variable to be passed to the function containing EndTime string  If EndTime is less than StartTime then EndTime will be treated as a time in the next day in that case  the function measures time difference between a maximum distance of 24 hours minus 1 centisecond time elements can have values greater than their standard maximum value ex  12 247 853 5214 provided than the total represented time does not exceed 24 360000 centiseconds or  24 00 00 00  otherwise the result will not be meaningful  If EndTime is greater than or equals to StartTime then  No formal limitation applies to the value of elements  except that total represented time can not exceed 2147483647 centiseconds    More examples with literal and non-standard time values  Literal example with EndTime less than StartTime    echo off setlocal EnableExtensions  set  start 23 57 33 12  set  end 00 02 19 41   call  timediff dif start end  echo Start Time   start  echo End Time     end  echo  echo Difference   dif  echo   pause exit  b     put the  timediff function here   Output    Start Time  23 57 33 12 End Time    00 02 19 41  Difference  00 04 46 29   Normalize non-standard time    echo off setlocal EnableExtensions  set  start 00 00 00 00  set  end 27 2457 433 85935   call  timediff normalized start end  echo  echo  end  is equivalent to  normalized  echo   pause exit  b     put the  timediff function here   Output     27 2457 433 85935 is equivalent to 68 18 32 35    Last bonus example    echo off setlocal EnableExtensions  set  start 00 00 00 00  set  end 00 00 00 2147483647   call  timediff normalized start end  echo  echo 2147483647 centiseconds equals to  normalized  echo   pause exit  b     put the  timediff function here   Output     2147483647 centiseconds equals to 5965 13 56 47

User · Answer

echo off  rem Get start time  for  F  tokens 1-4 delims        a in    time    do      set  A  start      a 60  1  b    100  60 1  c    100  100 1  d    100     rem Any process here     rem Get end time  for  F  tokens 1-4 delims        a in    time    do      set  A  end      a 60  1  b    100  60 1  c    100  100 1  d    100     rem Get elapsed time  set  A elapsed end-start  rem Show elapsed time  set  A hh elapsed  60 60 100   rest elapsed   60 60 100   mm rest  60 100   rest   60 100  ss rest 100  cc rest  100 if  mm  lss 10 set mm 0 mm  if  ss  lss 10 set ss 0 ss  if  cc  lss 10 set cc 0 cc  echo  hh   mm   ss   cc      EDIT 2017-05-09  Shorter method added  I developed a shorter method to get the same result  so I couldn t resist to post it here  The two for commands used to separate time parts and the three if commands used to insert leading zeros in the result are replaced by two long arithmetic expressions  that could even be combined into a single longer line   The method consists in directly convert a variable with a time in  HH MM SS CC  format into the formula needed to convert the time to centiseconds  accordingly to the mapping scheme given below          HH               MM               SS                CC     10  HH    100  60 1  MM    100  60 1  SS    100  100 1  CC    100   That is  insert    10 at beginning  replace the colons by   100  60 1  replace the point by   100  100 1 and insert   100 at end  finally  evaluate the resulting string as an arithmetic expression  In the time variable there are two different substrings that needs to be replaced  so the conversion must be completed in two lines  To get an elapsed time  use  endTime - startTime  expression and replace both time strings in the same line   EDIT 2017 06 14  Locale independent adjustment added  EDIT 2020 06 05  Pass-over-midnight adjustment added   echo off setlocal EnableDelayedExpansion  set  startTime  time   0    set  P   Any process here      set  endTime  time   0      rem Get elapsed time  set  end  endTime  time  8 1    100  100 1     amp   set  start  startTime  time  8 1    100  100 1   set  A  elap     10 end  time  2 1    100  60 1   100 -    10 start  time  2 1    100  60 1   100   elap-  elap gt  gt 31  24 60 60 100   rem Convert elapsed time to HH MM SS CC format  set  A  cc elap  100 100 elap  100 ss elap  60 100 elap  60 mm elap  60 100 hh elap 60 100   echo Start      startTime  echo End        endTime  echo Elapsed    hh  1  time  2 1  mm  1  time  2 1  ss  1  time  8 1  cc  1    You may review a detailed explanation of this method at this answer

User · Answer

Based on previous answers  here are reusable  procedures  and a usage example for calculating the elapsed time    echo off setlocal  set starttime  TIME  echo Start Time   starttime   REM --------------------------------------------- REM --- PUT THE CODE YOU WANT TO MEASURE HERE --- REM ---------------------------------------------  set endtime  TIME  echo End Time   endtime  call  elapsed time  starttime   endtime  duration echo Duration   duration   endlocal echo on  amp  goto  eof  REM --- HELPER PROCEDURES ---   time to centiseconds      1 - time      2 - centiseconds output variable setlocal set  time   1 for  F  tokens 1-4 delims        a in     time    do      set  A   result      a 60  1  b    100  60 1  c    100  100 1  d    100    endlocal  amp  set   2   result  goto  eof   centiseconds to time      1 - centiseconds      2 - time output variable setlocal set  centiseconds   1 rem now break the centiseconds down to hors  minutes  seconds and the remaining centiseconds set  A  h   centiseconds    360000 set  A  m    centiseconds  -   h  360000    6000 set  A  s    centiseconds  -   h  360000 -   m  6000    100 set  A  hs    centiseconds  -   h  360000 -   m  6000 -   s  100  rem some formatting if   h  LSS 10 set  h 0  h  if   m  LSS 10 set  m 0  m  if   s  LSS 10 set  s 0  s  if   hs  LSS 10 set  hs 0  hs  set  result   h    m    s    hs  endlocal  amp  set   2   result  goto  eof   elapsed time      1 - time1 - start time      2 - time2 - end time      3 - elapsed time output setlocal set  time1   1 set  time2   2 call  time to centiseconds   time1   centi1 call  time to centiseconds   time2   centi2 set  A  duration   centi2 -  centi1  call  centiseconds to time   duration   result endlocal  amp  set   3   result  goto  eof

User · Answer

If you do not mind using powershell within batch script   echo off set start date  date   time     Simulate some type of processing using ping ping 127 0 0 1   set end date  date   time  powershell -command  quot  amp   start date1    datetime   parse   start date      end date1    datetime   parse   date   time     echo  -join  Duration in seconds       end date1 -  start date1  TotalSeconds      quot

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Fixed Gynnad s leading 0 Issue  I fixed it with the two Lines  SET STARTTIME  STARTTIME   0  SET ENDTIME  ENDTIME   0    Full Script   CalculateTime cmd      ECHO OFF     F U N C T I O N S     START TIME MEASURE SET STARTTIME  TIME  SET STARTTIME  STARTTIME   0  EXIT  B 0     STOP TIME MEASURE SET ENDTIME  TIME  SET ENDTIME  ENDTIME   0  SET  A STARTTIME  1 STARTTIME  0 2 -100  360000    1 STARTTIME  3 2 -100  6000    1 STARTTIME  6 2 -100  100    1 STARTTIME  9 2 -100  SET  A ENDTIME  1 ENDTIME  0 2 -100  360000    1 ENDTIME  3 2 -100  6000    1 ENDTIME  6 2 -100  100    1 ENDTIME  9 2 -100  SET  A DURATION  ENDTIME - STARTTIME  IF  DURATION     0 SET TIMEDIFF 00 00 00 00  amp  amp  EXIT  B 0 IF  ENDTIME  LSS  STARTTIME  SET  A DURATION  STARTTIME - ENDTIME  SET  A DURATIONH  DURATION    360000 SET  A DURATIONM   DURATION  -  DURATIONH  360000    6000 SET  A DURATIONS   DURATION  -  DURATIONH  360000 -  DURATIONM  6000    100 SET  A DURATIONHS   DURATION  -  DURATIONH  360000 -  DURATIONM  6000 -  DURATIONS  100  IF  DURATIONH  LSS 10 SET DURATIONH 0 DURATIONH  IF  DURATIONM  LSS 10 SET DURATIONM 0 DURATIONM  IF  DURATIONS  LSS 10 SET DURATIONS 0 DURATIONS  IF  DURATIONHS  LSS 10 SET DURATIONHS 0 DURATIONHS  SET TIMEDIFF  DURATIONH   DURATIONM   DURATIONS   DURATIONHS  EXIT  B 0     U S A G E     Start Measuring CALL    START TIME MEASURE     Print Message on Screen without Linefeed ECHO SET  P Execute Job         Some Time pending Jobs here      gt  NUL 2 gt  amp 1  Dont show any Messages or Errors on Screen MyJob exe  gt  NUL 2 gt  amp 1     Stop Measuring CALL    STOP TIME MEASURE     Finish the Message  Execute Job     and print measured Time ECHO  Done    TIMEDIFF       Possible Result    Execute Job     Done   00 02 12 31     Between  Execute Job      and   Done   00 02 12 31   the Job will be executed

User · Answer

As answered here  How can I use a Windows batch file to measure the performance of console application   Below batch  program  should do what you want  Please note that it outputs the data in centiseconds instead of milliseconds  The precision of the used commands is only centiseconds   Here is an example output   STARTTIME  13 42 52 25 ENDTIME  13 42 56 51 STARTTIME  4937225 centiseconds ENDTIME  4937651 centiseconds DURATION  426 in centiseconds 00 00 04 26   Here is the batch script    echo off setlocal  rem The format of  TIME  is HH MM SS CS for example 23 59 59 99 set STARTTIME  TIME   rem here begins the command you want to measure dir  s  gt  nul rem here ends the command you want to measure  set ENDTIME  TIME   rem output as time echo STARTTIME   STARTTIME  echo ENDTIME   ENDTIME   rem convert STARTTIME and ENDTIME to centiseconds set  A STARTTIME  1 STARTTIME  0 2 -100  360000    1 STARTTIME  3 2 -100  6000    1 STARTTIME  6 2 -100  100    1 STARTTIME  9 2 -100  set  A ENDTIME  1 ENDTIME  0 2 -100  360000    1 ENDTIME  3 2 -100  6000    1 ENDTIME  6 2 -100  100    1 ENDTIME  9 2 -100   rem calculating the duratyion is easy set  A DURATION  ENDTIME - STARTTIME   rem we might have measured the time inbetween days if  ENDTIME  LSS  STARTTIME  set set  A DURATION  STARTTIME - ENDTIME   rem now break the centiseconds down to hors  minutes  seconds and the remaining centiseconds set  A DURATIONH  DURATION    360000 set  A DURATIONM   DURATION  -  DURATIONH  360000    6000 set  A DURATIONS   DURATION  -  DURATIONH  360000 -  DURATIONM  6000    100 set  A DURATIONHS   DURATION  -  DURATIONH  360000 -  DURATIONM  6000 -  DURATIONS  100   rem some formatting if  DURATIONH  LSS 10 set DURATIONH 0 DURATIONH  if  DURATIONM  LSS 10 set DURATIONM 0 DURATIONM  if  DURATIONS  LSS 10 set DURATIONS 0 DURATIONS  if  DURATIONHS  LSS 10 set DURATIONHS 0 DURATIONHS   rem outputing echo STARTTIME   STARTTIME  centiseconds echo ENDTIME   ENDTIME  centiseconds echo DURATION   DURATION  in centiseconds echo  DURATIONH   DURATIONM   DURATIONS   DURATIONHS   endlocal goto  EOF

User · Answer

A re-hash of Aacini s code because most likely you are going to set the start time as a variable and want to save that data for output        echo off      rem                     MAIN CODE SECTION     set STARTTIME  TIME       rem Your code goes here  remove the ping line      ping -n 4 -w 1 127 0 0 1  gt NUL      set ENDTIME  TIME       rem                     END MAIN CODE SECTION       rem Change formatting for the start and end times     for  F  tokens 1-4 delims        a in    STARTTIME    do          set  A  start      a 60  1  b    100  60 1  c    100  100 1  d    100             for  F  tokens 1-4 delims        a in    ENDTIME    do           IF  ENDTIME  GTR  STARTTIME  set  A  end      a 60  1  b    100  60 1  c    100  100 1  d    100          IF  ENDTIME  LSS  STARTTIME  set  A  end       a 24  60  1  b    100  60 1  c    100  100 1  d    100              rem Calculate the elapsed time by subtracting values     set  A elapsed end-start      rem Format the results for output     set  A hh elapsed  60 60 100   rest elapsed   60 60 100   mm rest  60 100   rest   60 100  ss rest 100  cc rest  100     if  hh  lss 10 set hh 0 hh      if  mm  lss 10 set mm 0 mm      if  ss  lss 10 set ss 0 ss      if  cc  lss 10 set cc 0 cc       set DURATION  hh   mm   ss   cc       echo Start       STARTTIME      echo Finish      ENDTIME      echo          ---------------     echo Duration    DURATION     Output       Start      11 02 45 92     Finish     11 02 48 98              ---------------     Duration   00 00 03 06

[windows] Calculate time difference in Windows batch file

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