If you have an outside source on the network that provides time services, such as an NTP server, you do not need to manually set the system clock.
Beginning in privileged EXEC mode, follow these steps to set the system clock

This example shows how to manually set the system clock to 1:32 p.m. on July 23, 2001:

Switch# clock set 13:32:00 23 July 2001

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