Use the date command to display the current date and time or set the system date / time over ssh session. You can also run the date command from X terminal as root user.
You must login as root user to use date command.
Linux Display Current Data and Time
Just type the date command:
Wed Apr 23 10:32:59 CDT 2014
Linux Display The Hardware Clock (RTC)
Type the following hwclock command to read the Hardware Clock and display the time on screen:
# hwclock -r
# hwclock --show
OR show it in Coordinated Universal time (UTC):
# hwclock --show --utc
Wed 23 Apr 2014 10:36:23 AM CDT -0.157239 seconds
Linux Set Date Command Example
Use the following syntax to set new data and time:
For example, set new data to 2 Oct 2006 18:00:00, type the following command as root user:
# date -s "2 OCT 2006 18:00:00"
# date --set="2 OCT 2006 18:00:00"
You can also simplify format using following syntax:
# date +%Y%m%d -s "20081128"
Linux Set Time Examples
To set time use the following syntax:
# date +%T -s "10:13:13"
- 10: Hour (hh)
- 13: Minute (mm)
- 13: 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"
How do I set the Hardware Clock to the current System Time?
Use the following syntax:
# hwclock --systohc
# hwclock -w