There is a date and time issue with the current iOS version of Sky Safari in the Create Observation page. Although my iPad and SkySafari itself show the correct local time (I am in the GMT +8 timezone), the Started At and Ended At date entry boxes show the wrong hour (it is 19 hours behind the true hour) but the correct minutes and seconds.
I found a work-around to fix it that might give a clue as to the bug. If I remove the session ("No Session") and then click in and out of the Started At boxes, then the time shown corrects itself. Clicking in and out of the boxes doesn't correct the problem if I do not first remove the session.
Many thanks for your help with this one