GvR suggests that Roundup's date format of "YYYY-MM-DD.hh:mm:ss"
is unreadable, and proposes replacing the period with a space.
See http://psf.upfronthosting.co.za/roundup/meta/issue182.
Another possibility would be ISO 8601 (using "T" as the
separator). WDOT? Compare:
Date: 2008-01-23.14:06:34
Date: 2008-01-23 14:06:34
Date: 2008-01-23T14:06:34