Matrix PRASAR UCS - Page 175

166 Matrix PRASAR UCS System Manual
When you select Scheduled as the DST option, the Real Time Clock of PRASAR UCS is advanced and
set backward automatically according to the DST convention of the country/region where the IP Phone is
installed.
Scheduled DST Adjustment is useful in countries/regions where DST Time is fixed, such as in Europe,
USA and Canada, without yearly variations.
PRASAR UCS supports 18 DST Types for Scheduled DST Adjustment. To know more, refer to “Daylight
Saving Time (DST)”. To know more about Scheduled DST assigned for the respective region, refer to Time
Zone in “Default Settings”.
When you select Manual as the DST option, the Real Time Clock of PRASAR UCS is advanced manually
and set backward automatically according to the DST convention of the country/region where the IP Phone
is installed.
Manual DST Adjustment is to be used in regions/countries that have no fixed DST Convention and where
yearly variations in DST practices are likely.
When DST option is set as 'Manual', you must set the DST Start and the DST End time, that is, the time at
which the clock is to be advanced and the time at which the clock is to be delayed. To do so,
•In Time Offset, enter the time you wish to forward or backward the DST start time with.
•In DST Type, select the desired option: Date-Month Wise OR Day-Month Wise.
If you select 'Date-Month Wise' in DST Type, you should now select the desired options in each of the
following to specify the DST Start details.
• Date: Select the date on which DST begins (1-31).
• Month: Select the month when DST begins (January-December).
• Time (Hours): Select the time at which DST will begin to change.The time mode is of 24 hours
ranging from 00 to 23 hours.
• Time (Minutes): Select the time at which DST will begin to change.The time mode is of 60 minutes
ranging from 00 to 59 minutes.
Similarly, in the DST End configure the desired DST End Time details.
If you select ‘Day-Month Wise' in DST Type, you should now select the desired options in each of the
following to specify the DST Start details.
• Ordinal: Select the Ordinal number of the day of the month, that is, the 1st, 2nd, 3rd, 4th, 5th day,
when DST begins.
• Day: Select the day of the month - Sunday, Monday, Tuesday, Wednesday, Thursday, Friday,
Saturday- when DST begins.
• Month: Select the month when DST begins (January-December).
• Time (Hours): Select the time at which DST must begin to change.The duration is of 24 hours
ranging from 00 to 23.
• Time (Minutes): Select the time at which DST must begin to change.The duration is of 60 minutes
ranging from 00 to 59.
Similarly, in DST End configure the DST End Time details.
Once the DST Ends, the time of the IP Phone is set back to the Standard time automatically.