Exploring Date command in Linux
date command is used to display the system date and time. date command is also used to set date and time of the system. By default the date command displays the date in the time zone on which unix/linux operating system is configured.You must be the super-user (root) to change the date and time.
To Display time in UTC
Different Formats in Date
%a — locale’s abbreviated weekday name (e.g., Sun)
%A — locale’s full weekday name (e.g., Sunday)
%b — locale’s abbreviated month name (e.g., Jan)
%B — locale’s full month name (e.g., January)
%c — locale’s date and time (e.g., Thu Mar 3 23:05:25 2005)
%C — century; like %Y, except omit last two digits (e.g., 20)
%d — day of month (e.g., 01)
%D — date; same as %m/%d/%y
%e — day of month, space padded; same as %_d
%F — full date; same as %Y-%m-%d
%g — last two digits of year of ISO week number (see %G)
%G — year of ISO week number %h same as %b
%H — hour (00..23)
%I — hour (01..12)
%j — day of year (001..366)
%k — hour, space padded ( 0..23); same as %_H
%l — hour, space padded ( 1..12); same as %_I
%m — month (01..12)
%n — a newline
%N — nanoseconds (000000000..999999999)
%p — locale’s equivalent of either AM or PM
%P — like %p, but lower case
%q — quarter of year (1..4)
%r — locale’s 12-hour clock time (e.g., 11:11:04 PM)
%R — 24-hour hour and minute; same as %H:%M
%s — seconds since 1970–01–01 00:00:00 UTC
%S — second (00..60)
%t — a tab
%T — time; same as %H:%M:%S
%u — day of week (1..7); 1 is Monday
%U — week number of year, with Sunday as first day of week
%V — ISO week number, with Monday as first day of week
%w — day of week (0..6); 0 is Sunday
%W — week number of year, with Monday as first day of week
%x — locale’s date representation (e.g., 12/31/99)
%X — locale’s time representation (e.g., 23:13:48)
%y — last two digits of year (00..99)
%Y — year
%z — +hhmm numeric time zone (e.g., -0400)
%:z — +hh:mm numeric time zone (e.g., -04:00)
%::z — +hh:mm:ss numeric time zone (e.g., -04:00:00)
%:::z — numeric time zone with : to necessary precision
%Z — alphabetic time zone abbreviation (e.g., EDT)
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