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How to Set a System’s Date and Time Manually
1. Become superuser.
2. Enter the new date and time.
# date mmddHHMM[[cc]yy]
mm Month, using two digits.
dd Day of the month, using two digits.
HH Hour, using two digits and a 24-hour clock.
MM Minutes, using two digits.
cc Century, using two digits.
yy Year, using two digits.
See date(1) for more information.
3. Verify that you have reset your system’s date correctly by using the date command
with no options.
Example—Setting a System’s Date and Time Manually
The following example shows how to use the date command to manually set a
system’s date and time.
# date
Thu Jun 21 13:59:15 MDT 2001
# date 0621141001
Thu Jun 21 14:10:00 MDT 2001