January is 9 months before October.
Nine months before October 3 is January 3 of the same year. To find this, you subtract nine months from October, which takes you back through the months of September, August, July, June, May, April, March, February, and January. Therefore, the date is January 3.
Nine months before January 7th is April 7th of the previous year. This is because counting back nine months from January takes you through the months of December, November, October, September, August, July, June, May, and finally to April.
Nine months before March 26 is June 26 of the previous year. To calculate this, you can count back from March to June of the previous year, moving through the months of February, January, December, November, October, September, and August, which adds up to nine months.
July 3
October 1
The 17th of March 2016 is nine months before it and the 17th of September 2017 is nine months after it.
Nine months before September 3 is December 3 of the previous year. To arrive at this date, you subtract nine months from September, which brings you back to December.
Nine months before January 7th is April 7th of the previous year. To calculate this, you can count back through the months: December, November, October, September, August, July, June, May, and finally April. Thus, April 7th is the date that is nine months prior to January 7th.
october
February to October of the same year is eight months. That is measured from beginning to beginning, end to end, middle to middle, etc. That means there are seven months between February and October, and February to October inclusive is nine months.
Nine months before January 26th is April 26th of the previous year. To calculate this, you subtract nine months from January, which brings you to April of the previous year. Therefore, the date is April 26th.
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.