Cisco: clock

With clock you can set the current time and date on a Cisco device. For example:

clock set 20:08:56 Sept 21 2010

The generic syntax of the command is:

clock set hh:mm:ss MONTH <0-31> YYYY


  • hh is the hour,
  • mm are the minutes,
  • ss are the seconds,
  • MONTH is the month,
  • <0-31> is the date, an integer between 0 and 31, and
  • YYYY is the year.

Note that the month and date are also acceptable in the reverse order, for example:

clock set 20:08:56 21 Sept 2010

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