EFI Shell commands -- DATE(顯示/修改目前系統日期)

Displays or changes the current system date.

DATE [mm/dd/[yy]yy]

    mm    - Month of date to set, range: 1 - 12
    dd    - Day   of date to set, range: 1 - 31
    yyyy  - Year  of date to set, range: 1998 - 2099

Note:
    1. Short year format:
       yy: 98=1998, 99=1999, 00=2000, 01=2001, ..., 97=2097.
    2. Long year format:
       yyyy: 1998 - 2099, other values are invalid.
    3. EFI may behave unpredictably if illegal date values are used.

Examples:
  * To display the current system date:
    fs0:\> date
    06/18/2001

  * To set the system date using the long year format:
    fs0:\> date 01/01/2050
    fs0:\> date
    01/01/2050

  * To set the system date using the short year format:
    fs0:\> date 06/18/01
    fs0:\> date
    06/18/2001