Hitachi TD61-2472 - Manual (Page 54)

1.11.9 Time setting
Setting the date, time, NTP, and alarm.
1 From the information display menu, select "9. Clock".
2 From the clock menu, select "1. Setting the date and time".
The date and time are displayed.
3 From the clock menu, select "2. NTP" and switch the NTP On/Off.
Note! If no NTP server is set, when you reboot the time that has been set is
initialized.
4 Use the keys to set NTP On/Off, then finalize with the key.
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