Ruling · Mitra Saptamī · 1900

Thursday 29 November

Determinatein Daqing, under the Rashtriya Panchang method. Clear of every threshold by 155 minutes.

Decide it for

46°35′ N 125°00′ E · Asia/Shanghai · GeoNames 2037860

The two middays

One ghaṭī is 24 minutes. Madhyāhna is 1 ghaṭikā either side of midday.

Midday of Wednesday 28 November

Saptamī is absent from madhyāhna. Not taken.

madhyāhna begins 11:09  11:57 madhyāhna ends
10:2110:4511:0911:3311:5712:2112:45

0 of 48 minutes covered

Midday of Thursday 29 November

Taken. The only midday Saptamī reaches.

madhyāhna begins 11:09  11:57 madhyāhna ends
10:2110:4511:0911:3311:5712:2112:45

48 of 48 minutes covered

Saptamī presentMadhyāhna, the window the rule readsThe instant the tithi begins or ends

How it was decided

  1. 01

    Aṅga

    Saptamī runs from 15:58 on Wed 28 Nov to 14:32 on Thu 29 Nov.

    1900-11-28T07:53:18Z → 1900-11-29T06:27:05Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:09–11:57 on the 28th, 11:09–11:57 on the 29th.

    madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′

  3. 03

    Rule

    Saptamī must be present during madhyāhna. It covers 0 of 48 minutes on the 28th and 48 of 48 on the 29th.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104

  4. 04

    Tie-break

    Only one midday qualifies. No tie-break is needed.

    priority: purvaviddha → only-day · margin 9301 s

  5. 05

    Ruling

    Mitra Saptamī, Daqing, 1900: Thursday 29 November.

    confidence: determinate

Say it like this

In Daqing, Mitra Saptamī 1900 falls on Thursday 29 November. Saptamī runs from 15:58 on Wed 28 Nov to 14:32 on Thu 29 Nov and covers all of madhyāhna that midday.

ahargana.org/daqing/festivals/1900/mitra-saptami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 29 Nov
Ahargaṇa, classicalDisc centre, no refractionThu 29 Nov
compat-drikpanchangComparison profileThu 29 Nov
No institution has a recorded ruling for Daqing.

Institutional rulings are recorded with a source address, and are never edited to agree.

The rule, as data

/rules/mitra-saptami · ruleset 2026.3-draft

Month
Mārgaśīrṣa, amānta
Pakṣa · aṅga
Śukla · Saptamī
Kāla
Madhyāhna
Priority
Pūrvaviddhā
Tie-break
First day
Reference
CRC 1955, p. 104

“S 7 Mitra saptami (purvaviddha).” Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104.

The same rule, elsewhere

Twelve places, west to east. Local clock times.

PlaceSaptamīMadhyāhna 28thCoveredMadhyāhna 29thCoveredRuled
Los Angeles23:53 → 22:2711:1748 min11:170 min28 Nov
Chicago01:53 → 00:2711:1548 min11:150 min28 Nov
Jersey City02:53 → 01:2711:2048 min11:210 min28 Nov
Port of Spain03:53 → 02:2711:3048 min11:300 min28 Nov
London07:53 → 06:2711:2448 min11:250 min28 Nov
Durban09:23 → 07:5710:5048 min10:500 min28 Nov
Dubai11:34 → 10:0811:2437 min11:240 min28 Nov
Delhi13:14 → 11:4811:360 min11:3612 min29 Nov
Kolkata13:14 → 11:4810:510 min10:5248 min29 Nov
Singapore14:48 → 13:2211:240 min11:2448 min29 Nov
Sydney17:53 → 16:2711:190 min11:2048 min29 Nov
Suva19:48 → 18:2211:250 min11:2648 min29 Nov
Profile · tradition
pac-rp@2026.1 · smarta
Rule
mitra-saptami@2026.3-draft
Engine · kernel
0.1.0 · de440 7eef…ea74
Boundary margin
300 s

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