DATE

Displays or sets the date. The way the date is displayed depends on country settings. Date can also be displayed using echo %DATE%.

Examples

$ date /t
Wed, 03/13/2019

$ echo %DATE%
Wed, 03/13/2019

Getting date in the ISO format, like 2000-01-28 is hard because the date format depends on country settings.

• If you can assume the format of Mon 01/28/2000, the following will do:
  • set isodate=%date:~10,4%-%date:~4,2%-%date:~7,2%
• If you have WMIC, the following is locale independent:
  • for /f %i in ('wmic os get LocalDateTime') do @if %i lss a if %i gtr 0 set localdt=%iset isodate=%localdt:~0,4%-%localdt:~4,2%-%localdt:~6,2%
  • To use the above in a batch, turn %i into %%i and remove @ from before if.
• If you have Perl installed:
  • for /f %i in ('perl -MPOSIX -le "print strftime '%Y-%m-%d', localtime"') do @set isodate=%i

Links:

• date at ss64.com
• date at Microsoft
• How to get current datetime on Windows command line, in a suitable format for using in a filename? at stackoverflow

$ date /?
Displays or sets the date.

DATE [/T | date]

Type DATE without parameters to display the current date setting and
a prompt for a new one.  Press ENTER to keep the same date.

If Command Extensions are enabled the DATE command supports
the /T switch which tells the command to just output the
current date, without prompting for a new date.