bugfix: seconds should not be passed into datetime.timedelta as int, because millisecond info is lost.
bugfix: seconds should not be passed into datetime.timedelta as int, because millisecond info is lost.

dpshelio/sunpy,Alex-Ian-Hamilton/sunpy,dpshelio/sunpy,dpshelio/sunpy,Alex-Ian-Hamilton/sunpy,Alex-Ian-Hamilton/sunpy