> On 22 Jun 2022, at 17:59, Paulo da Silva > <p_d_a_s_i_l_v_a...@nonetnoaddress.pt> wrote: > > Às 05:29 de 21/06/22, Paulo da Silva escreveu: > > As a general response to some comments ... > > Suppose we need to delete records from a database older than ... > Today, it's usual to specify days. For example you have to keep some gov > papers for 90 days. This seems to come from computers era. In our minds, > however, we immediately think 90 days=3 months. > For example, one may want to delete some files older than 9 months. It's far > more intuitive than 270 days. > When we talk about years it is still going. For example I need to keep my > receipts for 5 years because IRS audits. > Accepting this, it's intuitive, for example, that 3 months before July, 31 is > April, 30. > The same happens for the years. 5 years before February, 29 is February, 28.
The advantage of 30 days, 90 days etc is that a contract or law does not need to tell you how to deal with the problems of calendar months. As you say in peoples thoughts that 1 month or 3 months etc. But an accounts department will know how to to the number of days till they have to pay up. Barry > > Again, this is my opinion and that's the way I like it :-) > Regards > Paulo > -- > https://mail.python.org/mailman/listinfo/python-list -- https://mail.python.org/mailman/listinfo/python-list
