date command– This command is use to display the system date and time. And also you can set date and time of system.
# date
Sat Mar 23 22:52:55 IST 2019
Set date and time of system
# date -s "Mar 23 2019 22:54:50"
Or,
# date --set "Mar 23 2019 22:54:50"
Print current year
# date +%Y
2019
Print current month
# date +%m
Print current month of date
# date +%d
23
Print current time
# date +%T
22:58:27
Print today Year, Month, Day
# date +%Y-%m-%d
2019-03-23
Print today Year, Month, Day and Time
# date "+%Y-%m-%d %T"
2019-03-23 23:00:38
Print time zone in Alphabetic
# date "+%Y-%m-%d %T %Z"
2019-03-23 23:06:56 IST
Print time zone in Numeric
# date "+%Y-%m-%d %T %z"
2019-03-23 23:07:34 +0530