Yealink SIP-T28P - Manual (Page 35)

Customizing Your Phone
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4. Press or , or the Switch soft key to select the desired value from the DST
field.
5. Press the Save soft key to accept the change or the Back soft key to cancel.
Note
To configure the time and date manually via phone user interface:
1. Press Menu->Settings->Basic Settings->Time & Date->Manual Settings.
2. Enter the specific date in the Date field.
3. Enter the specific time in the Time field.
4. Press the Save soft key to accept the change.
The date and time displayed on the LCD screen will change accordingly.
To configure the time and date format via phone user interface:
1. Press Menu->Settings->Basic Settings->Time & Date->Time & Date Format.
2. Press or , or the Switch soft key to select the desired time format from the
Clock field.
Please refer to Appendix A - Time Zones for the list of available time zones on the IP
phone.