https://devzone.nordicsemi.com/f/nordic-q-a/32394/real-time-counter-driftHi I am using nRF52832. I want to use Real time counter of this chip for time keeping just like external RTC. Can you tell how much drift my system will get in time ? We are using external LF crystal. From, Smitesh Malien-USTelligent Community 13Mon, 19 Mar 2018 08:25:55 GMThttps://devzone.nordicsemi.com/thread/124917?ContentTypeID=1Mon, 19 Mar 2018 08:25:55 GMT137ad170-7792-4731-bb38-c0d22fbe4515:e9b305aa-f94d-465b-b159-3307b8f1150aSigurd<p><span>Hi,</span></p> <p><span>You can calculate the drift using the crystal&rsquo;s frequency tolerance / ppm value. This value can be found in the datasheet for the crystal you are using. You can then use calculators <a href="https://www.maximintegrated.com/en/design/tools/calculators/product-design/rtc.cfm">like on this site</a> to find the drift in seconds per day.</span></p><div style="clear:both;"></div>