From: mokomoji@naver.com   
      
   2020년 12월 6일 일요일 오전 10시 50분 3초 UTC+9에 Tom Del   
   Rosso님이 작성한 내용:   
   > The last line is the thing I want to point out. It's a single equation    
   > that converts the hour from 24-hour format to 12-hour format. I'm sure    
   > this would run faster than an IF statement and more so if the IF was    
   > followed by a GOTO. In the past I have used IF because I hadn't thought    
   > of doing it all in arithmetic. But I don't see a way to avoid the IF    
   > that chooses am and pm.    
   >    
   > set tm=%time%    
   > set hr=%tm:~0,2%    
   > if %hr% LSS 12 (set AMPM=am) else (set AMPM=pm)    
   > set /a hr=hr%%12 + !hr*12 + !(hr-12)*12    
   >    
   > --   
      
      
   @echo off   
   cd /d %~dp0   
   setlocal   
      
   for /l %%l in (1,1,23) do (   
   call set /a "z_t2=%%l/12"   
   call echo %%z_t2%%|find /i "1" 2>nul>nul&&set z_apm=PM||set z_apm=AM   
   call echo %%l--%%z_t2%%--%%z_apm%%   
   )   
      
   :end   
   endlocal   
   pause   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)