https://devzone.nordicsemi.com/f/nordic-q-a/67960/nrf-calendar#include &quot;nrf_calendar.h&quot; #include &quot;nrf.h&quot; static struct tm time_struct, m_tm_return_time; static time_t m_time, m_last_calibrate_time = 0; static float m_calibrate_factor = 0.0f; static uint32_t m_rtc_increment = 60; static void (*cal_event_callbacken-USTelligent Community 13Wed, 04 Nov 2020 13:38:38 GMThttps://devzone.nordicsemi.com/thread/278456?ContentTypeID=1Wed, 04 Nov 2020 13:38:38 GMT137ad170-7792-4731-bb38-c0d22fbe4515:9fba5bfc-2565-4f94-931e-2f62a0d8bb5cSimonr<p>Hi</p> <p>I have already mentioned which functions you should take a look at in <a href="https://devzone.nordicsemi.com/f/nordic-q-a/67927/nrf-calendar">your last ticket about the nRF calendar</a>. I suggest we keep to the previous ticket and that you don&#39;t create multiple tickets with the same subject as that only makes it harder to help you if we have to maintain multiple tickets. Feel free to ask&nbsp;<em>specific&nbsp;</em>questions if you have any!</p> <p>Best regards,</p> <p>Simon</p><div style="clear:both;"></div>