Note: If a pre-configured rule DST rule happens to be
changed in the future (like the change to the US DST rule
in 2006), this option allows the DST rules to be edited
without the need to perform a software upgrade for a
new DST rule to be defined. Select this drop-down and
enter the DST parameters for the new rule.
7.
DST Start Date and DST End Date: This option is provided for locations
that do not follow any of the pre-configured DST rules. Click anywhere in
either field to open a calendar, allowing you to enter any custom day & time
rule.
8.
Offset: In seconds. Use this field to manually define your local clock’s DST
offset e.g., 3600 seconds for a one hour offset.
9.
DST Reference: When configuring a Local Clock that is synchronized to an
input reference (e.g., IRIG input), SecureSync needs to know the timescale
of the input time (Local Timescale, or UTC Timescale), in order to provide
proper internal conversion from one Timescale to another.
Select Local or UTC, depending on the Timescale of the Input reference this
Local Clock is being used with.
Additional Local Clocks may need to be created if multiple input Times-
cales are being submitted.
10.
Click Submit. Your local clock will appear in the Local Clocks panel.
3.2.4.2 DST Examples
The following two examples illustrate the configuration of Daylight Savings Time
(DST) for a Local Clock:
E x a m p l e 1 :
To create a Local Clock to UTC+1 with no DST rule:
1. Navigate to MANAGEMENT > Time Management: Local Clocks > (+):
Local Clock.
2. In the Local Clock Name field, assign a meaningful name to the new Local Clock.
3. From the UTC Offset pull down menu, select “UTC +01:00”.
4. Confirm that the Use DST Rules checkbox is not selected.
5. Review the changes made and click the Submit button.
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CHAPTER 3 • SecureSync 2400 User Manual Rev. 5.2
3.2 System Time
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