Change time zone in OpenBSD

Link one of time zone files to /etc/localtime. For example, to Asia/Singapore:

# ln -sf /usr/share/zoneinfo/Asia/Singapore /etc/localtime
# date
Thu Apr  5 20:26:40 +08 2018

or simply use zic(8) (in this example to Europe/Moscow):

# zic -l Europe/Moscow
# date
Thu Apr  5 15:26:51 MSK 2018

See also

ln(1), date(1)