https://devzone.nordicsemi.com/f/nordic-q-a/1685/use-rtc-calendarHi, I would used a RTC calendar (Years, month, day, hour, minute, second). The smartphone connect to the nrf51822 and updates the date and time. The nRF51822 must perform action depending on the time of day ... DO you have an example ? Thank inen-USTelligent Community 13Fri, 08 Jan 2021 10:30:18 GMThttps://devzone.nordicsemi.com/thread/288126?ContentTypeID=1Fri, 08 Jan 2021 10:30:18 GMT137ad170-7792-4731-bb38-c0d22fbe4515:750aa012-35db-450a-a97f-fe697182f869Rajbir Singh<p>Is there any example for nrf52832 now?</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/7458?ContentTypeID=1Mon, 24 Feb 2014 20:23:48 GMT137ad170-7792-4731-bb38-c0d22fbe4515:5514c204-e5f0-48fe-b287-2f54572909d4Petter Myhre<p>Hi Charly</p> <p>I&#39;m sorry, we don&#39;t have an example for that.</p> <p>Please see <a href="https://devzone.nordicsemi.com/index.php/rtc-calendar">this</a> thread for more information.</p><div style="clear:both;"></div>