It was a Tuesday.
Thursday
Yes they do.
The Sabbath occurs every week.
According to the Gregorian calendar, the first day of the week of the year 480 "anno domini nostri iesu christi ", which has been a leap year, was a Monday.
January 1, 2009 fell on a Thursday.
It may begin on any day
That day was a Tuesday.
April 16th 1974 was a Tuesday.
August 22, 1974 was a Thursday.
August 3, 1974 was a Saturday.
19th September 1974 was a Thursday.
January 1 1974 was a Tuesday.