Combining the days of January and September gives 61 days. (31 + 30 = 61)
September 10
There are 31 days in the month of January and there are 30 days in there are 30 days in the month of September. All together, there and 61 days in January and September.
From the 1st of September to the 31st of January inclusive is 153 days.
61 days in total, January has 31 and September has 30.
From the 1st January, 2010 to 1st September, 2010 there are 244 days.
Between January 1 and September 8, 2010 there are 251 days inclusive.
18 weeks old (plus 2 days) as of today (January 13, 2009).
Between September 14, 2009 and January 27, 2010 there were 135 days.
January 8 + 210 days = August 6
January 18th 2010 plus 210 days is Monday, August 16, 2010.
September 6 - 225 days = January 26
123 days.