• How to create systemd service unit in Linux
• Set systemd service to execute after fstab mount
• DigitalOcean Tutorials systemd:
  • How To Use Systemctl to Manage Systemd Services and Units
  • Understanding Systemd Units and Unit Files
  • How To Use Journalctl to View and Manipulate Systemd Logs
  • Systemd Essentials: Working with Services, Units, and the Journal
• NFS mount via systemd
• How to start systemd service after NFS mount in Linux

systemd-analyze – Find System Boot-up Performance Statistics in Linux

man journald.conf manual page for journald.conf
man journalctl manual page for journalctl

timedatectl to print current time date on cli
Date to print basic time date only on cli
timedatectl list-timezones to set available time zones
sudo timedatectl set-timezone australia/perth to set timezone

Some links:

• Arch Linux systemd/Timers
• Putorius Using systemd Timer Units to Schedule Jobs
• Linux.com Systemd Timers: Three Use Cases

• Freedesktop.org systemd.time — Time and date specifications and systemd.timer — Timer unit configuration