26 weeks (and one day).
There are 8.625 weeks in April and May combined.
There is exactly 7 weeks between the two dates. So there are no years, 1 month and just under 3 weeks between them.
Jan 1st - Oct 31st is Forty weeks and two days - according to my Windows calendar !
39 weeks and 1 day. (2 days if you include December 31st)
30 weeks and 3 days.
April-October which is 6 months which is 24 weeks
26 weeks (and one day).
In any given year, including the start and end dates in the calculation, there are 27 weeks 6 days between the two dates.
A lot
8 weeks
Between January 1 and October 31 there are 39 weeks.
A little over 13 weeks between Jan 1 and April 5 2009.
Between July 1, 2008 and April 1, 2009 there were 39 weeks.
From 15 March to 26 April is six weeks.
It was 39 weeks.
8 weeks and 5 days