Received: from makus.postgresql.org (makus.postgresql.org [98.129.198.125]) by mail.postgresql.org (Postfix) with ESMTP id EAE571F02EF3 for ; Thu, 26 Apr 2012 15:46:33 -0300 (ADT) Received: from sss.pgh.pa.us ([66.207.139.130]) by makus.postgresql.org with esmtp (Exim 4.72) (envelope-from ) id 1SNTi5-0001eD-53 for pgsql-docs@postgresql.org; Thu, 26 Apr 2012 18:46:33 +0000 Received: from sss2.sss.pgh.pa.us (tgl@localhost [127.0.0.1]) by sss.pgh.pa.us (8.14.2/8.14.2) with ESMTP id q3QIkIFE011542; Thu, 26 Apr 2012 14:46:18 -0400 (EDT) To: Robert Haas cc: Kevin Grittner , cousinflo@free.fr, pgsql-docs@postgresql.org Subject: Re: Date/Time Types : internals In-reply-to: References: <4F8F0F71.20500@free.fr> <4F8ED21402000025000470FA@gw.wicourts.gov> <9773.1334780084@sss.pgh.pa.us> Comments: In-reply-to Robert Haas message dated "Mon, 23 Apr 2012 22:34:10 -0400" Date: Thu, 26 Apr 2012 14:46:18 -0400 Message-ID: <11541.1335465978@sss.pgh.pa.us> From: Tom Lane X-Pg-Spam-Score: -1.9 (-) X-Archive-Number: 201204/53 X-Sequence-Number: 7307 Robert Haas writes: > So which calendar are we using, Julian or Gregorian? Gregorian. I fail to see anyplace that suggests we use the Julian calendar. We do understand the Julian date system, which is something entirely different with a confusingly similar name. (Julian dates are just a count of days since a reference point in 4713 BC.) regards, tom lane