Install with: 1sudo apt install at Enable the daemon service with: 1sudo systemctl enable --now atd Then jobs can be specified with absolute time, such as: 1at 16:20 1at noon 1at midnight 1at teatime Type in your command, e.g.: 1touch /tmp/$FILE.txt The jobs can also be specified relative to the current time: 1at now …

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Show system time: 1date Show hardware time: 1sudo hwclock -r Change system time to match hardware time: 1sudo hwclock --hctosys Change hardware time to match system time: 1sudo hwclock --systohc Manually set the hardware time to a specified date: 1sudo hwclock --set --date="8/25/19 13:30:00" Normal Date 1date +%d/%m/%y …

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Cronie The cronie program is also known as crond. Install 1sudo apt search -n ^cron Once installed, search for the service name, and start it. 1sudo systemctl list-unit-files | grep cron 2sudo systemctl enable --now $NAME Usage Show your current crontab: 1crontab -l You can put this in a file and edit it: 1crontab -l > …

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Your locale tells the computer your location, preferred time-and-date format, standard language, papersize, et c. A list of supported locales is available at /usr/share/i18n/SUPPORTED See a full list with: 1cat /usr/share/i18n/SUPPORTED Take the first portion to generate full locale information for a region: …

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systemd Set time to synchronize with an ntp server: 1timedatectl set-ntp true This info stays in /usr/share/zoneinfo. Local Time Local time is kept in /etc/localtime. According to Dave's LPIC guide, you can set the local time by making asymboling link from your timezone to /etc/localtime, as so: 1sudo ln -sf …

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Summaries Try: 1timew summary :yesterday You can also use :week, :lastweek, :month, :quarter, :year, or a range such as: 1timew summary today to tomorrow 2timew today - tomorrow 32018-10-15T06:00 - 2018-10-17T06:00 Each of these can gain with the :ids tag. Basics 1timew start 2timew stop 3timew continue 4timew summary …

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