I have a spreadsheet in which I keep track of expenditure. I need to be able to provide end of quarter balances. However there is a complication.
In any year the first quarter includes a few weeks in December and the final quarter ends at the end of the first week in December the following year. Example, in 2008, Quarter 1 began on Dec 12 2007 and ended Mar 31 2008. The second and third quarters are as normal Apr 1 to Jun 30 and Jul 1 to Sep 30. Quarter 4 is from Oct 1 to Dec 7. (The reason for this is so that our Accounts Section can have all invoices paid by year end on Dec 31)

Therefore, when I enter a date in Column A, I'd like Q1, Q2, Q3 or Q4 (based on the requirement set out above) to appear beside it in Column B.

If it helps, I could insert 2 cells where I could input the start date (Dec 12 2007) and end date (Dec 7 2008). Then it would only be a matter of changing these dates annually.

Any help welcome.

MJD