January is 9 months before October.
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.
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.
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 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.
There tend to be more births in September and October. This may be because there is holiday season nine months before, or from the fact that the longest nights of the year happen in the Northern Hemisphere nine months before as well.[8] October 5 is considered to be the most populous birthday in the United States.[9]
March 6th
august
There are three months between October and July: November, December, January, February, March, April, May, June, and then July. If you count from October to July, it totals nine months. However, if you are looking for the months between the two, it would be three months.