Update cheatsheets

linux/timedatectl

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+---
+syntax: markdown
+tags: [tldr, linux]
+source: https://github.com/tldr-pages/tldr.git
+---
+# timedatectl
+
+> Control the system time and date.
+> More information: <https://manned.org/timedatectl>.
+
+- Check the current system clock time:
+
+`timedatectl`
+
+- Set the local time of the system clock directly:
+
+`timedatectl set-time "{{yyyy-MM-dd hh:mm:ss}}"`
+
+- List available timezones:
+
+`timedatectl list-timezones`
+
+- Set the system timezone:
+
+`timedatectl set-timezone {{timezone}}`
+
+- Enable Network Time Protocol (NTP) synchronization:
+
+`timedatectl set-ntp on`
+
+- Change the hardware clock time standard to localtime:
+
+`timedatectl set-local-rtc 1`