Subject: bug#26165: date-week-day screws up prior to AD 1

From: Zefram <[email-masked]>
Date: Sun, 19 Mar 2017 01:01:40 +0000

I wrote:
>written to perform divisions with quotient where it obviously needs
>modulo.

Oops, thinko there.  It needs floor-quotient, the quotient-like function
that uses floor rounding.  modulo is the *remainder*-like function that
uses floor rounding.

-zefram