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→Fixer l'heure de la RTC
{{ADFImage|RASP-PCF8523-Fixer-Heure-10.png}}
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You can see, the date at first is invalid! You can set the correct time easily. First run {{fname|date}} to verify the time is correct. Plug in Ethernet or WiFi to let the Pi sync the right time from the Internet. Once that's done, run {{fname|sudo hwclock -w}} to '''w'''rite the time, and another {{fname|sudo hwclock -r}} to '''r'''ead the time
{{ADFImage|RASP-PCF8523-Fixer-Heure-11.png}}
Once the time is set, make sure the coin cell battery is inserted so that the time is saved. You only have to set the time once
That's it! Next time you boot the time will automatically be synced from the RTC module
== Raspbian Wheezy ou autres systèmes pré-systemd ===
Si ce point vous intéresse en particulier, vous pouvez poursuivre votre lecture depuis la page "[https://learn.adafruit.com/adding-a-real-time-clock-to-raspberry-pi/set-rtc-time#raspbian-wheezy-or-other-pre-systemd-linux Raspbian Wheezy or other pre-systemd Linux]"
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