title: Is there any chance that CLOCK_REALTIME changes time automatically?
body: <p>I'm using linux api clock_gettime(realtime) to print current time. Check log index ending with 649 and 917.</p>
  <p>The real clock time was 1646948676.999081502(at index 649)
  ,but after 10 secs it suddenly jumped more than &gt;24 hours back and was 1646860487.614595043(index 917).</p>
  <p>Main thing i wanna know is what is VuC offset? Will VucOffset affect this realtime?
  and</p>
  <p>Could you please explain what is the reason for time jump? and how can we avoid this?</p>
  <pre><code>221649 2022/03/10 02:44:37.000000 PF_CLOCK_SYNC CLOCK_MONOTONIC_RAW=35.228995663 s CLOCK_MONOTONIC=35.228996808 s CLOCK_REALTIME=1646948676.999081502 s
  230583 2022/03/10 02:44:46.000000 receiveTMPData data received !!
  230584 2022/03/10 02:44:46.000000 TMP::Data received is: -56563019
  230585 2022/03/10 02:44:46.000000 TMP:TM_OUTPUT_VUC_OFFSET IS SET!!
  231917 2022/03/10 02:44:47.000000 PF_CLOCK_SYNC CLOCK_MONOTONIC_RAW=45.230177586 s CLOCK_MONOTONIC=45.230296214 s CLOCK_REALTIME=1646860487.614595043 s
  
  
  </code></pre>