使用%，当时间值为7-9时，您将遇到十六进制操作错误。为了避免这种情况，请使用delayeexpand并使用!min:~1!

如果你有PowerShell，另一个方法是调用它:

for /F "usebackq delims=Z" %%i IN (`powershell Get-Date -format u`) do (set server-time=%%i)

这是我对adatetime字符串的2美分。在MM DD YYYY系统上切换第一个和第二个%DATE:~条目。

    REM ====================================================================================
    REM CREATE UNIQUE DATETIME STRING FOR ADDING TO FILENAME
    REM ====================================================================================
    REM Can handle dd DDxMMxYYYY and DDxMMxYYYY > CREATES YYYYMMDDHHMMSS (x= any character)
    REM ====================================================================================
    REM CHECK for SHORTDATE dd DDxMMxYYYY 
    IF "%DATE:~0,1%" GTR "3" (
        SET DATETIME=%DATE:~9,4%%DATE:~6,2%%DATE:~3,2%%TIME:~0,2%%TIME:~3,2%%TIME:~6,2%
    ) ELSE (
    REM ASSUMES SHORTDATE DDxMMxYYYY
        SET DATETIME=%DATE:~6,4%%DATE:~3,2%%DATE:~0,2%%TIME:~0,2%%TIME:~3,2%%TIME:~6,2%
        )
    REM CORRECT FOR HOURS BELOW 10
    IF %DATETIME:~8,2% LSS 10 SET DATETIME=%DATETIME:~0,8%0%DATETIME:~9,5%
    ECHO %DATETIME%

我是这样做的:

REM Generate FileName from date and time in format YYYYMMTTHHMM

Time /T > Time.dat
set /P ftime= < Time.dat

set FileName=LogFile%date:~6%%date:~3,2%%date:~0,2%%ftime:~0,2%%ftime:~3,2%.log

echo %FileName%

LogFile201310170928.log

一个很好的单行技巧是使用cmd /c echo ^%time^%来避免早期变量展开

cmd /c echo ^%time^% & dir /s somelongcommand & cmd /c echo ^%time^%

这个批处理脚本将完全按照O.P.的要求执行(在Windows XP SP3上测试)。

我还使用了前面“jph”所描述的聪明的注册表技巧，我认为这是在任何新的或旧的Windows系统上获得100%一致的日期格式“yyyy_MM_dd”的最简单方法。对一个注册表值的更改是瞬时、临时和微不足道的;它只持续几毫秒，然后立即恢复。

双击此批处理文件进行即时演示，命令提示符窗口将弹出并显示您的时间戳. . . . .

::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
:: generates a custom formatted timestamp string using date and time.
:: run this batch file for an instant demo.
::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::

@ECHO OFF
SETLOCAL & MODE CON:COLS=80 LINES=15 & COLOR 0A

:: --- CHANGE THE COMPUTER DATE FORMAT TEMPORARILY TO MY PREFERENCE "yyyy_MM_dd",
REG COPY "HKCU\Control Panel\International" "HKCU\Control Panel\International-Temp" /f 2>nul >nul
REG ADD "HKCU\Control Panel\International" /v sShortDate /d "yyyy_MM_dd" /f 2>nul >nul

SET MYDATE=%date%

:: --- REVERT COMPUTER DATE BACK TO SYSTEM PREFERENCE
REG COPY "HKCU\Control Panel\International-Temp" "HKCU\Control Panel\International" /f 2>nul >nul
REG DELETE "HKCU\Control Panel\International-Temp" /f 2>nul >nul

:: --- SPLIT THE TIME [HH:MM:SS.SS] TO THREE SEPARATE VARIABLES [HH] [MM] [SS.SS]
FOR /F "tokens=1-3 delims=:" %%A IN ('echo %time%') DO (
SET HOUR=%%A
SET MINUTES=%%B
SET SECONDS=%%C
)

:: --- CHOOSE ONE OF THESE TWO OPTIONS :
:: --- FOR 4 DIGIT SECONDS        //REMOVES THE DOT FROM THE SECONDS VARIABLE [SS.SS]
:: SET SECONDS=%SECONDS:.=%
:: --- FOR 2 DIGIT SECONDS        //GETS THE FIRST TWO DIGITS FROM THE SECONDS VARIABLE [SS.SS]
SET SECONDS=%SECONDS:~0,2% 

:: --- FROM 12 AM TO 9 AM, THE HOUR VARIABLE WE EXTRACTED FROM %TIME% RETURNS A SINGLE DIGIT, 
:: --- WE PREFIX A ZERO CHARACTER TO THOSE CASES, SO THAT OUR WANTED TIMESTAMP
:: --- ALWAYS GENERATES DOUBLE-DIGIT HOURS (24-HOUR CLOCK TIME SYSTEM).
IF %HOUR%==0 (SET HOUR=00)
IF %HOUR%==1 (SET HOUR=01)
IF %HOUR%==2 (SET HOUR=02)
IF %HOUR%==3 (SET HOUR=03)
IF %HOUR%==4 (SET HOUR=04)
IF %HOUR%==5 (SET HOUR=05)
IF %HOUR%==6 (SET HOUR=06)
IF %HOUR%==7 (SET HOUR=07)
IF %HOUR%==8 (SET HOUR=08)
IF %HOUR%==9 (SET HOUR=09)

:: --- GENERATE OUR WANTED TIMESTAMP
SET TIMESTAMP=%MYDATE%__%HOUR%_%MINUTES%_%SECONDS%

:: --- VIEW THE RESULT IN THE CONSOLE SCREEN
ECHO.
ECHO    Generate a custom formatted timestamp string using date and time.
ECHO.
ECHO    Your timestamp is:    %TIMESTAMP%
ECHO.
ECHO.
ECHO    Job is done. Press any key to exit . . .
PAUSE > NUL

EXIT

我真的是批处理文件的新手，这是我的代码!!(我不知道为什么，但我不能结合日期/t和时间/t在一起，我不能直接使用%date%和%time%没有变量…)

@ECHO OFF
set ldt=%date% %time%
echo %ldt%>> logs.txt
EXIT

它在某种程度上是从其他人那里重用的(问题是获得一个格式化的时间作为文件名)。