Chapter 4: Operation of Web-based Management
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Figure 4-8. System time setting screen.
Parameter description:
Current Time: Shows the system’s current time.
Manual: Click on the Manual button, type in the year, month, day, hour, minute, and second, then press the <Apply> button to adjust the
time manually. Valid figures for Year, Month, Day, Hour, Minute, and Second are >=2000, 1-12, 1-31, 0-23, 0-59, and 0-59, respectively. If
you input an invalid figure and press the <Apply> button, the device will reject the time adjustment request. There is no time zone setting in
Manual mode.
Default: Year = 2000, Month = 1, Day = 1, Hour = 0, Minute = 0, Second = 0
NTP: Network Time Protocol (NTP) is used to sync the network time based on Greenwich Mean Time (GMT). If you use the NTP mode and
select a built-in NTP time server or manually specify a user-defined NTP server and Time Zone, the switch will sync the time after you press
the <Apply> button. Although it synchronizes the time automatically, NTP does not update the time periodically without user input.
The default Time Zone setting is GMT. To select a different time zone, select the time zone first and then perform time sync via NTP. The
switch will combine this time zone offset and updated NTP time to calculate the local time. The switch supports configurable time zones from
–12 to +13 step 1 hour.
Default Time zone: +8 Hrs.
Daylight Saving: Daylight savings time adjusts the time lag or advance in hours, according to the starting date and the ending date. For
example, if you set the daylight savings time to be 1 hour, the system time will increase one hour after one minute. And when the time
passes over the ending time, the system time will be decrease one hour after one minute.
The switch supports valid configurable daylight savings time from –5 to +5 one hour steps. It does not have to adjust current time to enact
daylight savings time, and you don’t have to set the starting/ending date. If you set daylight savings time to be non-zero, you have to set the
starting/ending date as well; otherwise, the daylight savings function will not be activated.
Default for Daylight Saving: 0.
The following parameters are configurable for the Daylight Savings function and described in detail.
Daylight Savings Start: Set when to start daylight savings time.
