AASTRA SIP-DECT (Release 1.8)-Installation- and Administration Guide EN - Manual (Page 42)

Installation, Administration and Maintenance
Aastra depl-0900/0.4 Page: 42 (104)
The meaning of the different account types is described in chapter 4.2 and
4.3.
3.3.2.4 Time zones
A time and date resynchronization of the Aastra DECT 142 / Aastra 142d
devices is described in chapter 3.3.2.1.
In the time zone section the OpenMobility Manager provides all available
time zones. They are set with their known daylight savings time rules
adjusted to the Universal Coordinated Time (UTC) per default. The difference
to the UTC time is shown in the “UTC Difference” column. In case of a
configured daylight savings time rule this is also marked for each time zone.
There is a possibility to change the time zone rules for maximal five time
zones. Changed rules are marked with a bold time zone name in the table.
The changes are saved in the configuration file and are restored after each
OpenMobility Manager start-up. The “Default” button sets all time zones back
to the default values and deletes the changed time zone rules in the
configuration file.