Symmetricom TimeSource 3000 Manual page 130

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Edit Date (cont'd)
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The date/time stamp behavior is as follows:
• During warm-up:
- The date/time displayed starts from 1970 and increments from there. If the ED-
DAT command is used to set the time in local mode, the time is changed as
specified in the command.
• After warm-up:
- If the ED-DAT command has not been used to set the local mode time, then
UTC date and time are displayed.
- If the ED-DAT command has been used to set the local mode time, then it is
changed in the manner described as follows.
- The date given in the ED-DAT command is retained. The local hours, minutes,
and seconds are set to the nearest 30-minute divisible difference from UTC. A
few examples will help to clarify.
> Example 1. UTC time= 01:00:00. Local time= 18:01:10 will set the local
time to 18:00:00.
> Example 2. UTC time= 01:00:00. Local time= 18:25:30 will set the local
time to 18:30:00.
> Example 3. UTC time= 01:12:10. Local time= 18:50:30 will set the local
time to 18:42:10.
- During Holdover Event
- The date/time continues to increment normally.
• During Holdover Alarm
- - The date/time continues to increment normally.
Example to set date without changing time or mode:
ED-DAT:::<ctag>::2000-08-13;
Example to change to local time:
ED-DAT:::<ctag>::2000-08-13,07-00-00:MODE=LOCAL;
Example to change from local to UTC time:
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TimeSource 3000
097-72000-02 Issue 6: October 2003
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TL1 Reference