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have a predetermined offset except for CUSTOM.
3.1.2.3 Custom Time Zone
If CUSTOM is selected for the Time Zone then this field is editable. Set the desired custom offset by
using the drop down menus to select hours, minutes and (+/-).
3.1.2.4 SNTP Resync Period
The SNTP Resync Period entry sets the period between SNTP requests. Enter the number of hours and
minutes separated by a colon (Hours:Min). The default setting is 0 hours and 10 minutes and is the
recommended update interval.
3.1.2.5 Twelve Hour Time
Select 12 or 24 hour time. When the box is checked the TMPC is in 12 hour mode, when the box is
unchecked the TMPC is in 24 hour mode. The default setting is 12 hour mode. In the 12 hour mode of
operation AM hours will display a dot in the upper left corner of the display. PM hours will display a
dot in the lower left corner of the display. (In 24 hour mode there will be no indication of AM or PM)
3.1.3 Daylight Savings
Daylight Savings Time(DST) varies greatly from one country to another and sometimes even within
countries themselves. As a result there are many parameters used to handle all of the various rules that
are in use throughout the world. The default setting uses the rule that is observed by the majority of the
United States.
NOTE*
If any DST settings are changed, the changes will not take effect until the next SNTP Resync
Period.
3.1.3.1 Daylight Savings(DST Options)
The Daylight Saving Time Drop down, allows you to select AUTO, OFF, or CUSTOM. When AUTO
is selected the clocks use the default US Daylight Savings start and stop dates. If OFF is selected the
clock does not adjust for Daylight Savings Time. If CUSTOM is selected the user can specify a custom
start date with a start time and stop date with a stop time. The user can also adjust the bias of the offset.
NOTE*
If a US Time Zone is selected then and DST setting of OFF is not allowed. If a DST setting
of OFF is needed the Time Zone should be changed to the corresponding UTC time zone. (i.e. USCT-
USA Central is equivalent to UTC -6).
Installation and Operations Manual | Page 8
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