On 07/10/16 03:54, Leslie S Satenstein wrote: > Michael > > > A year of weeks (ISO) may be 52 or 53, depending on when the first Thursday > of the month lands. > > Therefore a quarter of a year may include 13 or 13.5 weeks. (one definition). > > The other, by your simple shell script, it provides a second definition, > based on the calendar. > > One more ponderable, Do we take days in the year and use 1 Jan as the start > of a quarter, or the first week to be the one containing the Sunday that > first precedes or has 1 January (Dec 27th 2016)?
It's probably best to not consider weeks in this at all. Just month boundaries
