I want to implement nrf_calendar with RTC3https://devzone.nordicsemi.com/f/nordic-q-a/63014/i-want-to-implement-nrf_calendar-with-rtc3Hi, Devzone. Well, I found the calendar library from the following link. https://github.com/NordicPlayground/nrf5-calendar-example By the way, I&#39;m using RTC0 for Softdevice so I should change it with RTC3. I tried to change defines (which areen-USTelligent Community 13Mon, 29 Jun 2020 05:15:32 GMTRE: I want to implement nrf_calendar with RTC3https://devzone.nordicsemi.com/thread/257262?ContentTypeID=1Mon, 29 Jun 2020 05:15:32 GMT137ad170-7792-4731-bb38-c0d22fbe4515:8ce791c5-e633-4324-89e8-99d462879330zester926<p>Thank you&nbsp;<span>J&oslash;rgen!<br /><br />I solved it from changing with RTC2.</span></p><div style="clear:both;"></div>RE: I want to implement nrf_calendar with RTC3https://devzone.nordicsemi.com/thread/256888?ContentTypeID=1Thu, 25 Jun 2020 11:40:14 GMT137ad170-7792-4731-bb38-c0d22fbe4515:cadfd7ac-81dd-4bed-bfc4-c0cba3536781J&#248;rgen Holmefjord<p>Hi,</p> <p>There is <a href="https://infocenter.nordicsemi.com/topic/ps_nrf52840/rtc.html#topic">no RTC3 in nRF52840</a>. The chip has 3 RTC instances, RTC0, RTC1, and RTC2. Typically RTC0 is used for softdevice, RTC1 is used by app_timer library, and RTC2 is available for other uses in the application.</p> <p>Best regards,<br />Jørgen</p><div style="clear:both;"></div>