Yealink Skype for Business HD IP Phones Administrator Guide1083. Select the desired value from the pull-down list of Date Format.4. Click Confirm to accept the change.To configure the date and time manually via phone user interface:1. Press Menu->Basic->Date &Time->General->Manual Settings.2. Enter the specific date and time or press or to edit specific date and time in thecorresponding fields.3. Press Save to accept the change.The time and date displayed on the LCD screen will change accordingly.To configure the time and date format via phone user interface:1. Press Menu ->Basic->Date &Time ->Time & Date Format.2. Press or , or the Switch soft key to select the desired date format from the DateFormat field.3. Press or , or the Switch soft key to select the desired time format (12 Hour or 24Hour) from the Time Format field.4. Press the Save soft key to accept the change or the Back soft key to cancel.Daylight Saving TimeDaylight Saving Time (DST) is the practice of temporary advancing clocks during the summertime so that evenings have more daylight and mornings have less. Typically, clocks are adjustedforward one hour at the start of spring and backward in autumn. Many countries have used theDST at various times, details vary by location. By default, the DST is set to Automatic, so it can beadjusted automatically from the current time zone configuration. You can configure DST for thedesired area as required.