This document is a WORK IN PROGRESS.
This is just a quick personal cheat sheet: treat its contents with caution!

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System time

TODO

Reference(s)

• https://wiki.archlinux.org/title/System_time

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Table of contents

• Use

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Use

TODO

• Default way of changing time zone on SystemD:

  $ sudo timedatectl set-timezone Region/City
  

• Default way of changing time zone on non-SystemD:

  $ sudo ln -sf /usr/share/zoneinfo/Region/City /etc/localtime
  

• Network time sync:

  • See the network time synchronization cheat sheet

• Set time manually:

  $ date # print date
  $ sudo date MMJJhhmmAAAA # set date and time manually (if needed)
  

• Set hardware clock (not needed on a VM):

  # vi /etc/conf.d/hwclock # make sure that the system clock is indeed UTC
      > clock="UTC"
  
  # hwclock --show
  # hwclock --systohc # generate /etc/adjtime
  

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