custom calendar

[#1]

hi

i need to create a custom calendar where the periods start in 21 and ends in 20 of next month

Example:

Period	Dates included
Jan-Feb	start in 21/01/2014 and ends in 20/02/2014
Feb-Mar	start in 21/02/2014 and ends in 20/03/2014
Mar-Apr	start in 21/03/2014 and ends in 20/04/2014

how can i do this?

tnks!.

[oscar_ortiz]

Have a look at this thread answered by hic

Fiscal Calendar with shift in months