Including the start and end dates in the calculation, there are 90 days between the two dates.
Adding 100 days to February 14, 2009 gives May 25, 2009.
May 22, 2009 + 270 days = February 16, 2010
May always has 31 days.
28 days
223 days.
68 days.
For 2009: 31 days in January. 28 days in February. 31 days in March. 30 days in April. 31 days in May. 30 days in June. 31 days in July. 31 days in August. 30 days in September. 31 days in October. 30 days in November. 31 days in December.
In 2009: January had 31 days. February had 28 days. March had 31 days. April had 30 days. May had 31 days. June had 30 days. July had 31 days. August had 31 days. September had 30 days. October had 31 days. November had 30 days. December had 31 days.
Between 19 May, 2009 and 22 November, 2009 there were 187 days inclusive.
2810 days.
586 days
59 days.