UNIX Date/Time Handling

Showing Date/Time

date

Timezone Info

Linux

cat /etc/sysconfig/clock

Valid timezone settings...

ls -l /usr/share/zoneinfo

Change...

timedatectl / timeconfig

HP-UX

cat /etc/default/tz

Valid timezone settings...

ls -l /usr/lib/tztab

Change...

set_parms timezone

Solaris (11+)

Valid timezone settings...

ls -l /usr/share/lib/zoneinfo

Change...

svccfg -s timezone:default setprop timezone/localtime= astring: <timezone>

svcadm refresh timezone:default

timedatectl

[Linux]

timedatectl status


 Local time: Thu 2020-09-17 13:47:41 BST Universal time: Thu 2020-09-17 12:47:41 UTC RTC time: Thu 2020-09-17 12:47:41 Time zone: Europe/London (BST, +0100) System clock synchronized: yessystemd-timesyncd.service active: yes RTC in local TZ: no

Set Timezone...

timedatectl set-timezone Europe/London

timeconfig

[Linux] /usr/sbin/timeconfig


cal/ncal

An oft forgotten command available by default in most variants of UNIX and Linux...

ncal -3 -w -b

cal