# RTC updating issue **URL:** \ **Category:** Open AT\ **Created:** [September 16, 2013, 2:27pm UTC](https://forum.sierrawireless.com/t/rtc-updating-issue/6740 "2013-09-16T14:27:10Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![JSurf](https://sea1.discourse-cdn.com/flex025/user_avatar/forum.sierrawireless.com/jsurf/32/2243_2.png) [@JSurf](https://forum.sierrawireless.com/u/JSurf)\ **Post date:** [September 16, 2013, 2:27pm UTC](https://forum.sierrawireless.com/t/rtc-updating-issue/6740/1 "2013-09-16T14:27:10Z")
Hi All, Currently on my SL6087, the RTC is updated with the time from the GPS module. I find the RTC drifts, so the time is refereshed whenever I get a GPS lock. This all works fine for a bit, then after a while (generally after a few days of running) I cannot update the RTC using adl\_rtcSetTime or via AT+CCLK anymore. Here’s and example of trying to put the clock back 24 minutes at+cclk? +CCLK: “13/09/16,10:54:21” OK at+cclk=“13/09/16,10:30:10” OK at+cclk? +CCLK: “13/09/16,10:54:37” Only if I completely power the modem down (including the RTC) and power back up can I configure the time again. This thread also mentions not being able to set the time with AT+CCLK [https://forum.sierrawireless.com/t/at-cclk-not-working/5189/4](https://forum.sierrawireless.com/t/at-cclk-not-working/5189/4) Is this a common or known issue? Thanks ---
**Author:** ![sushil](https://avatars.discourse-cdn.com/v4/letter/s/e19adc/32.png) [@sushil](https://forum.sierrawireless.com/u/sushil)\ **Post date:** [September 17, 2013, 6:49am UTC](https://forum.sierrawireless.com/t/rtc-updating-issue/6740/2 "2013-09-17T06:49:09Z")
Can you try Firmware 7.52? This should be fixed in Firmware 7.52. ---
**Author:** ![JSurf](https://sea1.discourse-cdn.com/flex025/user_avatar/forum.sierrawireless.com/jsurf/32/2243_2.png) [@JSurf](https://forum.sierrawireless.com/u/JSurf)\ **Post date:** [September 18, 2013, 7:17am UTC](https://forum.sierrawireless.com/t/rtc-updating-issue/6740/3 "2013-09-18T07:17:37Z")
Hi Sushil, Thanks for the response… I’ll try that firmware on a few units and let it run for a few days. Thanks ---
**Author:** ![kiran\_chintala](https://avatars.discourse-cdn.com/v4/letter/k/ce7236/32.png) [@kiran\_chintala](https://forum.sierrawireless.com/u/kiran_chintala)\ **Post date:** [August 21, 2014, 12:31pm UTC](https://forum.sierrawireless.com/t/rtc-updating-issue/6740/4 "2014-08-21T12:31:35Z")
I have a similar issue on FXT009, I am currently using firmware 7.46. We update the time on all our devices on a daily basis for RTC to be always in sync with our server. However I see issues where the time cannot be updated and the RTC changed to some odd date and time. I currently have issues with 3 units out of 100+ devices deployed in the field. 1. One has its RTC gone to 24 hours behind 2. One unit to 12 minutes behind 3. One has its RTC gone to a few days behind The third device was rebooted several times by our engineer on field and see no difference. This device was sent back to our office, which took 2-3 days to get to me in post. By the time I got here I couldn’t see this issue. It may be because the RTC battery has been discharged and so it allowed me to set the time after I turned it on. Is this a firmware issue? If so why and when does it happen? Is this solved in 7.52? Please can someone help me? Regards Kiran ---
**Author:** ![awneil](https://avatars.discourse-cdn.com/v4/letter/a/49beb7/32.png) [@awneil](https://forum.sierrawireless.com/u/awneil)\ **Post date:** [August 21, 2014, 1:10pm UTC](https://forum.sierrawireless.com/t/rtc-updating-issue/6740/5 "2014-08-21T13:10:08Z")
> [@JSurf](#): > > Is this a common or known issue? > [@sushil](#): > > This should be fixed in Firmware 7.52. So you’re saying it is a known issue, and it has been fixed ❓ ---
**Author:** ![ManikandanAruchamy](https://avatars.discourse-cdn.com/v4/letter/m/a587f6/32.png) [@ManikandanAruchamy](https://forum.sierrawireless.com/u/ManikandanAruchamy)\ **Post date:** [February 19, 2019, 8:33am UTC](https://forum.sierrawireless.com/t/rtc-updating-issue/6740/6 "2019-02-19T08:33:26Z")
hi. Firmware 7.52 is not available for Q2686G and Q2687G.