Customizing Your Phone41-001387-05 REV03 – 07.2014 25Time and DateOn the IP phones, you can configure the following:• Time and date• Time and date format• Time zone• Daylight savings time• Time ServersConfiguring Time and DateUse the following procedures to configure the time and date settings on the IP phone.Set Time and Time FormatNote:Only the Time and Date Formats and Time Servers can be set using the Aastra Web UIIP Phone UI1. Press on the phone to enter the Options List.2. Select Preferences.3. Select Time and Date.4. Select Set Time.5. Using the keys on the keypad, enter a time to set on the IP phone. Use the3 and 4 navigation keys to move backward or forward when entering the time. Use the "*" key to set eitherAM or PM.6. Press Set to save the time setting.7. Select Time Format.8. Using the navigation keys, set the Time Format to either a 12 hour format or a 24 hour format. Valid values are 12Hour and 24 Hour. Default is 12 Hour.9. Press Set to save the Time Format you selected.