AASTRA 6700i series, 9143, 9480i, 9480i CT SIP Administrator Guide EN - Manual (Page 298)

41-001343-01 Rev 03, Release 3.2.2 5-21
Time Zone & DST
There are two ways you can set the time zone on the IP Phones.
First Method - You can set a time zone using the Time Zone option in the IP Phone UI or you can
use the “time zone name” parameter in the configuration files. Both methods allow you to enter a
value from the Time Zone table. The list of time zone names is provided in the table in Appendix
A, the section, “Time Zone Name/Time Zone Code Table” on page A-51. The following is an
example:
time zone name: US-Eastern
Second Method - You can use the Time Zone option in the IP Phone UI or your can use the “time
zone name” parameter in the configuration files, and specify a value of “Custom” for this
parameter (must use initial caps). The “Custom” option allows you to customize the time zone for
your area using additional configuration parameters. The following is an example using relative
time for EST:
time zone name: Custom
The following table identifies the additional time zone and DST parameters you can enter in the
configuration files..
Custom Configuration
File Parameter
Description Example
time zone minutes The number of minutes the time zone is offset
from UTC (Coordinated Universal Time). This
can be positive (West of the Prime Meridian) or
negative (East of the Prime Meridian). The
default is Eastern Standard Time (EST) with a
value of 300 (GMT minus 5 hours). time zone minutes: 300
Note: For additional values for this
parameter, see
“Custom Time Zone
and DST Settings” on page A-57.
dst minutes The number of minutes to add during Daylight
Saving Time. Valid values are a positive integer
between 0 to 60. dst minutes: 60
dst [start|end] relative date Specifies how to interpret the start and end day,
month, and week parameters - absolute (0) or
relative (1). dst [start|end] relative date: 1
Absolute Time (not applicable to Eastern Standard Time (EST))
dst start month
The month that DST starts. Valid values are 1 to
12 (January to December). dst start month: 3
dst end month The month that DST ends. Valid values are 1 to
12 (January to December). dst end month: 4
dst [start |end] week Not applicable to absolute time. N/A
dst start day The day of the month that DST starts. Valid
values are 1 to 31. dst start day: 15