From: "Basil L. Contovounesios" <contovob@tcd.ie>
To: Zhang Haijun <ccsmile2008@outlook.com>
Cc: 36918@debbugs.gnu.org
Subject: bug#36918: 26.2.90; calendar: the chinese sexagesimal name for month is wrong
Date: Mon, 05 Aug 2019 00:24:31 +0300 [thread overview]
Message-ID: <87imrcr5dc.fsf@tcd.ie> (raw)
In-Reply-To: <KL1PR0601MB36534627142484B503EBD930A8DB0@KL1PR0601MB3653.apcprd06.prod.outlook.com> (Zhang Haijun's message of "Sun, 4 Aug 2019 07:23:57 +0000")
Zhang Haijun <ccsmile2008@outlook.com> writes:
> The sexagesimal name for month today should be Xin-Wei not
> Ren-Shen. It will becomes Ren-Shen after 4 days(on 8/8. which is the
> beginning of autumn). As far as I known, It always changes at the
> monment when the ecliptic longitude is 15, 45, 75 … (for every 30
> degrees).
Sorry, I am not very familiar with either the Chinese calendar or the
Calendar app, but I think the following points might be of interest.
The cal-china.el package contains the following disclaimer in its
commentary:
The rules used for the Chinese calendar are those of Baolin Liu
(see L. E. Doggett's article "Calendars" in the Explanatory
Supplement to the Astronomical Almanac, second edition, 1992) for
the calendar as revised at the beginning of the Qing dynasty in
1644. The nature of the astronomical calculations is such that
precise calculations cannot be made without great expense in time,
so that the calendars produced may not agree perfectly with
published tables--but no two pairs of published tables agree
perfectly either! Liu's rules produce a calendar for 2033 which is
not accepted by all authorities. The date of Chinese New Year is
correct from 1644-2051.
p C (calendar-chinese-print-date) describes 2019-08-05 as follows:
Cycle 78, year 36 (Ji-Hai), month 7 (Ren-Shen), day 5 (Jia-Xu)
and a quick online search revealed two websites[1][2] which give a
similar description:
Ji Hai Year (4717), Ren Shen Month (7), Jia Xu Day (5)
[1]: https://www.travelchinaguide.com/intro/focus/calendar.htm
[2]: https://www.prokerala.com/general/calendar/chinese-year-converter.php
So to an ignorant person like me, there is nothing obviously wrong with
Emacs' calculations. Perhaps someone else can shine some more light on
this.
Thanks,
--
Basil
next prev parent reply other threads:[~2019-08-04 21:24 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-08-04 7:23 bug#36918: 26.2.90; calendar: the chinese sexagesimal name for month is wrong Zhang Haijun
[not found] ` <handler.36918.B.15649034527390.ack@debbugs.gnu.org>
2019-08-04 7:32 ` bug#36918: Acknowledgement (26.2.90; calendar: the chinese sexagesimal name for month is wrong) Zhang Haijun
2019-08-04 21:24 ` Basil L. Contovounesios [this message]
2019-08-05 1:53 ` bug#36918: 26.2.90; calendar: the chinese sexagesimal name for month is wrong Zhang Haijun
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