January 28, 1986 was a Tuesday.
Monday
February 29th, 1985 was actually a leap year. So, this day of the week did not occur.
The Mensa Calendar Challenger for June 18, 2012, posed the question regarding the next date that shares the same day of the week and the same numerical date. The answer is June 18, 2023, as both dates fall on a Sunday.
The summer solstice occurs on a specific date, typically June 21, and can fall on any day of the week. Since there are seven days in a week, the probability of the summer solstice occurring on any particular day, including Monday, is 1 out of 7. Therefore, the probability is ( \frac{1}{7} ) or approximately 0.14.
A week is larger than a day because a day has 24 hours but a week has 168.
The Challenger Accident occured on Tuesday, January 28th, 1986.
The shuttle challenger, disintegrated after launch, killing all seven astronauts on board on Tuesday, January, 28, 1986.
The space shuttle Challenger exploded on January 28, 1986, which was a Tuesday.
September 11th can be on any day of the week
On Sabbaths and Jewish holidays. (The holidays can occur on any day of the week.)
Tuesday- D-Day occurred on a Tuesday.
The time of day or day of week does not seem to matter.
Thursday
Saturday.
Tuesday
Monday
It was a Thursday.