Manipulating timestamp value
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What would be the best way to increase/decrease a timestamp value? I've tried the following 2 approaches:
[mytimestamp]
type=extract
default=%datetime-u%
increase=5
---
[temptimestamp]
type=extract
default=%datetime-u%
[mytimestamp]
type=extract
input=%temptimestamp%
increase=5
...but neither seem to work correctly
Comments
But all that is given for either is simply the letter 'u'