August 21.
Nine months before March 21st is June 21st of the previous year. To calculate this, you can count backward from March: January is two months before March, December is three months before January, and November is four months before December, continuing this way until you reach June. Thus, nine months back from March 21st lands on June 21st of the prior year.
Same as adding three months - as in 12 - 9 = 3 so 21st of August answer.
Nine months before December 21st is March 21st. This calculation is based on the typical duration of human gestation, which is approximately nine months. Therefore, March 21st is the date that would correspond to the conception date for a due date of December 21st.
The seasons differ by six months between the northern and southern hemispheres. The spring season is from about March 21st until June 21st in the northern hemisphere and from September 21st until December 21st in the southern hemisphere.
21st November 1952 was a Friday.
First day of Summer is in June, first day of Winter is in November.
21st of November 1984 was a Wednesday.
21st of November 1968 was a Thursday.
In the northern hemisphere, including the U.S., fall begins in September and ends in December.
November 21st, 1978 fell on a Tuesday.
As of today, October 14, 2023, it has been nearly 11 years and 11 months since November 21, 2011.
There are five months between December 21st and May 21st. Counting the months, you have January, February, March, April, and May. The period includes parts of December and May but focuses on the full months in between.