Configuring Daylight Saving Time - Cisco 521SG - Unified IP Phone VoIP Administration Manual

Configuring Regional Parameters and Supplementary Services
Localizing Your IP Phone
Cisco Small Business SPA300 Series, SPA500 Series, and WIP310 IP Phone Administration Guide
• Manual Setup—The time and date can be entered manually by using the IP
phone screen or the phone web user interface. However, this value is
overwritten by the NTP time or SIP Message Date whenever they are
available to the phone. Manual setup requires that you enter the time in
24-hour format only.
The time served by the NTP Server and the SIP Date Header are expressed in
GMT time. The local time is obtained by offsetting the GMT according to the time
zone of the region.
Time Zone
The parameter can be configured by using the phone web user
interface or through provisioning. This time can be further offset by the
Offset (HH/mm
) parameter. This parameter must be entered in 24-hour format and
can also be configured from the IP phone screen.
Time Zone Time Offset (HH/mm)
The and
time and date setup.

Configuring Daylight Saving Time

The phone supports auto adjustment for daylight saving time. You must set
Daylight Savings Time Enable
time stamp on the CallerID
To enter the rule for calculating DST, include the start, end, and save values
separated by semi-colons (;) as follows:
Start = start-time; end=end-time; save = save-time
For example, the default DST rule is:
start=4/1/7;end=10/-1/7;save=1.
The start-time and end-time
daylight saving time. The format is:
month/day/weekday[/HH:mm:ss]
month
The value equals any value in the range 1-12 (January-December).
day
The value equals any + or - value in the range 1-31. If value is -1, the time will
change on the weekday on or before the end of the month; the last occurrence of a
weekday in that month.
offset values are
to yes and enter the DST rule. This option affects the
.
values specify the start and end dates and times of
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