American Fibertek SM10p-PoE - Manual (Page 67)

Standard GST
Guam Standard, USSR
Zone 9
IDLE - International Date
Line
NZST - New Zealand
Standard
NZT - New Zealand
+12 hours Midnight
4. SNTP Sever URL: set the SNTP server IP address.
5. Daylight Saving Period: set up the Daylight Saving beginning time and
Daylight
Saving ending time. Both will be different in every year.
6. Daylight Saving Offset (mins): set up the offset time.
7. Switch Timer: Displays the switch current time.
8. Click Apply .
SNTP Configuration interface
60