Aastra 9000i Series Administrator's Manual page 302

Custom Time Zone Support
A User or Administrator can also set a custom time zone on the phone.to be configured with the
Network Time Protocol (NTP) server addresses. However, NTP provides the Coordinated
Universal Time (UTC) time so the phone requires the offset from UTC in order to deliver the
correct local time.
On the IP Phone UI for 5-line phones, a User or Administrator can select Preferences->Time and
Date->Time Zone->Others and choose "Custom" from the displayed time zone list.
On the IP Phone UI for 3-line phones, you select Preferences->Time and Date->Time
Zone->Others and enter "Custom" for the country code.
On the 6739i, a User or Administrator can select Set Time->Timezone->Others and choose
"Custom" from the displayed time zone list.
References
For more information about setting a custom timezone, see Appendix A,
page A-50.
Configuring Time and Date Using the Configuration Files
Use the following information to set a time and date format, time zone, and daylight savings time
using the configuration files..
Configuration Files
For specific date and time parameters you can set in the configuration files, see Appendix A, the section,
"Time and Date Settings"
For specific parameters you can set for custom time zone settings, see Appendix A, the section,
Time Zone and DST Settings"
Configuring Time and Date Using the IP Phone UI
Use the following procedure to set a time and date, time and date format, time zone, and daylight
savings time using the IP Phone UI.
IP Phone UI
Step Action
1 Press on the phone to enter the Options List.
Set Time Format:
2 Select Time and Date.
3 Select Time Format.
Valid values are 12hr and 24hr.
Note: The default Time Format is 12hr.
4 Press Change to toggle between 24hr and 12hr format.
41-001343-01 Rev 02, Release 3.2.2
on page A-48.
on page A-57.
"Time Zone Name" on
"Custom
5-25