640 B
640 B
Basics
Show system time:
date
Show hardware time:
sudo hwclock -r
Change system time to match hardware time:
sudo hwclock --hctosys
Change hardware time to match system time:
sudo hwclock --systohc
Manually set the hardware time to a specified date:
sudo hwclock --set --date="8/25/19 13:30:00"
Network Time Providers
Servers which take their time from an observatory we call Stratum 1 servers. Servers which takes their time from Stratum n servers are Stratum n+1 servers.
Install ntp with:
sudo apt-get install -y ntp
The shell command for this is ntpq. Monitor the service providers using:
ntpq -p