Subtracting 90 days from April 8 on a non-leap year gives January 8.
Subtracting 90 days from April 8 on a leap year gives January 9.
In a regular year, adding 90 days to January 28 gives April 28. In a leap year, adding 90 days to January 28 gives April 27.
Adding 90 days to April 15, 2010 gives July 14, 2010.
90 days after Thursday, April 22, 2010 = Wednesday, July 21, 2010.
Subtracting 90 days from April 15, 2011 gives January 15, 2011.
Subtracting 90 days from July 1 gives April 2.
The 22nd of April 2009.
In a non-leap year, adding 90 days to January 13 gives April 13. In a leap year, adding 90 days to January 13 gives April 12.
Adding 90 days to January 11, 2009 gives April 11, 2009.
Adding 90 days to January 27, 2012 gives April 26, 2012.
90 days after Friday, January 22, 2010, = Thursday, April 22, 2010.
It is 30 June of the same year.
To illustrate, the due day of 90 day note dated March 16 maybe determined as follow: Term of the note ...........................................90 March(days).....................31 Date of note ....................16 --- Remainder days in March........15 April (days).............................30 May(days)...............................31 - Total...................................................................76 ---- Due date, June..................................................14