There are two possible answers to that, depending on which way you interpret the date. The 10th of September 1939 was a Sunday. October the 9th 1939 was a Monday.
Monday
February 9, 1939 was a Thursday.
tuesday
That day was a Friday.
Monday (the day after Mothers' Day)
May 9 was a Saturday
Sources say the battle started at 9 or 10 am on the 14th of October 1066. It lasted approximately nine hours.
it was a tuesday, i was born that day
Friday
It was a Saturday.
Saturday
Saturday.