Event ID : 1 in windows Server 2012

2
  1. It’s a normal log when your system try to modify time to sync with ntppool (or other ntp server)
  2. Client will sync with DC
  3. 11:07-05:37=05:30, so it’s already synced.
  4. Windows will use BIOS time when booting, when OS time is modified, Windows write modified time to BIOS.