In computing, time an date are commands that are used to display and set the current time and date of the operating system. Both commands are available in DOS, OS/2 and Microsoft Windows command line interpreters (shells) such as COMMAND.COM, cmd.exe and 4DOS/4NT. The Unix command date displays both the time and date, but does not allow the normal users to change either. Users with superuser privileges may use date -s <new-date-time> to change the time and date. The Unix command time performs a different function. In Windows PowerShell, date is a short form for the Get-Date Cmdlet which returns the current system time object. The Set verb of the Cmdlet is used to set both date and time.