Regionally independent date time parsing

date.bat:
@echo off

:: If you want the date independently of the region day/month order, you can use "WMIC os GET LocalDateTime" as a source, since it's in ISO order:
for /F "usebackq tokens=1,2 delims==" %%i in (`wmic os get LocalDateTime /VALUE 2^>NUL`) do if '.%%i.'=='.LocalDateTime.' set ldt=%%j
set format1=%ldt:~0,4%-%ldt:~4,2%-%ldt:~6,2% %ldt:~8,2%:%ldt:~10,2%:%ldt:~12,6%
set format2=%ldt:~0,4%-%ldt:~4,2%-%ldt:~6,2%_%ldt:~8,2%%ldt:~10,2%%ldt:~12,6%

echo Local date is [%format1%]
echo Local date is [%format2%]

Reference:
http://stackoverflow.com/questions/203090/how-to-get-current-datetime-on-windows-command-line-in-a-suitable-format-for-us