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The Time page displays and allows configuration of various real (clock) time, time zone and (NTP) setttings.
Router Time: This displays the router's current real (clock) time and its time zone, expressed as relative to the UTC (Universal Time Coordinated) standard.
Time Zone allows you to select in which time zone your Tomato hardware resides, relative to the UTC (Universal Time Coordinated) standard.
Auto Daylight Savings Time: When checked, this configures Tomato to automatically adjust the time/date to reflect Daylight Savings Time.
Auto Update Time: This chooses if/how to automatically update the time via synchronization with an NTP (Network Time Protocol) server.
Never: Choosing this means Tomato does not synchronize its clock time/date with an NTP Time Server. Note: NTP server names/IP addresses can still be configured in Tomato, they just won't be used when Never is enabled.
Only at Startup: When checked, Tomato synchronizes time with one of the configured NTP servers each time it boots, but not afterwards. If you need time synchronization more often, or you have very long uptimes, you may want to choose the Auto Interval option.
Auto Interval: Selecting this option forces Tomato to synchronize time with a configured NTP server at a preset interval.
NTP Time Server: Here, choosing the continent or country where your device resides will cause Tomato to automatically configure default time server addressees appropriate for your location. If you select Custom, 3 other fields appear in which you manually enter the domain or IP addresses of 3 valid NTP servers. Note that selecting a geographical area will still retain the NTP server addresses entered into the Custom fields.