how to set date on linux

Linux Set Date

Use the following syntax to set new data and time:
date set="STRING"

For example, set new data to 2 JUN 2009 18:00:00, type the following command as root user:
# date -s "2 JUN 2009 18:00:00"
OR
# date set="2 JUN 2009 18:00:00"

You can also simplify format using following syntax:
# date +%Y%m%d -s "20090528"
Linux Set Time

To set time use the following syntax:
# date +%T -s "10:13:13"
Where,

* 10: Hour (hh)
* 13: Minute (mm)
* 30: Second (ss)

Use %p locale’s equivalent of either AM or PM, enter:
# date +%T%p -s "6:10:30AM"
# date +%T%p -s "12:10:30PM"