Windows 8 - Date and time settings Change NTP server/Update now
Change the NTP server synchronization interval
When you open it, “notation” is hexadecimal, so I’m not sure, so select decimal. The value data “604800” is the synchronization interval. The unit is “seconds” and is set to 1 week ( = 604800 seconds = 7 days x 24 hours x 60 minutes x 60 seconds). Enter the sync interval for which you want to set the value data (here 86400 seconds = 24 hours x 60 minutes x 60 seconds = 1 day) and click OK.
