Fixes #9129.  Set date to 1/1/1970 if only selecting a time.
Fixes #9129.  Set date to 1/1/1970 if only selecting a time.

git-svn-id: 674a2d6b1e32e53f607eb824547723f32280967e@17297 560b804f-0ae3-0310-86f3-f6aa0a117693

redaktor/deliteful