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From: lcc.jbrown@LOCUS.UCLA.EDU (Jordan Brown)
Newsgroups: net.unix
Subject: Dates
Message-ID: <3521@brl-smoke.ARPA>
Date: Wed, 3-Sep-86 12:27:31 EDT
Article-I.D.: brl-smok.3521
Posted: Wed Sep  3 12:27:31 1986
Date-Received: Thu, 4-Sep-86 06:44:16 EDT
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I forget who asked about day-of-week, but a little experimentation
shows that for the base date used by ACM#199 you need (j+1)%7.
This means, I think, that their day 0 is a Monday.  The result is
0 for Sunday through 6 for Saturday.