date is added in background while adding time in datastore GAE

Question

3.Why does "jan 1st 1970" gets added in the startime field in datastore when I am doing the below statements?

 (hour,min) = self.request.get('starttime').split(":")
 #if either of them is null or empty string then int will throw exception
 if hour and min :
  datastoremodel.starttime = datetime.time(int(hour), int(min))

Although when I retrieve it only time comes through? I wonder what date is doing in datastore? Any clues?

Answer 1

google app engine doc says

class TimeProperty(verbose_name=None, auto_now=False, auto_now_add=False, ...)
A time property, without a date. Takes a Python standard library datetime.time value. See DateTimeProperty for more information.
Value type: datetime.time. This is converted to a datetime.datetime internally.

so to convert time to a date , start of epoch time "jan 1st 1970" is added