I made a change to the Office Hours page to use the DateTime() macro, as this is smart enough to translate datetimes into a user's preferred timezone and date format, which I think would be an improvement to just specifying times in UTC.
Unfortunately, for users that don't have a preference configured, the default shows the timestamp in UTC but doesn't indicate which timezone the timestamp is in. This is unintentionally ambiguous.
I propose updating the moin configuration for datetime_fmt (see https://wiki.freebsd.org/HelpOnConfiguration#style) to include the %Z or %z format strings (see https://docs.python.org/2.7/library/datetime.html#strftime-strptime-behavior) so the default behaviour is not ambiguous for users.
As discussed on Discord, we'll go with 8601 and include seconds, as moin's default includes it:
wikiconfig.py is managed.
1) Update wiki:wikiconfig.py, appending:
# Override default time format, showing timezone
datetime_fmt = '%Y-%m-%dT%H:%M:%S%z'
2) Delete wikiconfig.pyc to apply changes
Committed to admin-svn in r13204.