Ruling · Mitra Saptamī · 1927

Thursday 1 December

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 623 minutes.

Decide it for

38°52′ N 115°28′ E · Asia/Shanghai · GeoNames 1816971

The two middays

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

Midday of Wednesday 30 November

Saptamī is absent from madhyāhna. Not taken.

madhyāhna begins 11:42  12:30 madhyāhna ends
10:5411:1811:4212:0612:3012:5413:18

0 of 48 minutes covered

Midday of Thursday 1 December

Taken. The only midday Saptamī reaches.

madhyāhna begins 11:43  12:31 madhyāhna ends
10:5511:1911:4312:0712:3112:5513:19

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 23:46 on Wed 30 Nov to 22:54 on Thu 1 Dec.

    1927-11-30T15:45:37Z → 1927-12-01T14:53:39Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:42–12:30 on the 30th, 11:43–12:31 on the 1st.

    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 30th and 48 of 48 on the 1st.

    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 37376 s

  5. 05

    Ruling

    Mitra Saptamī, Baoding, 1927: Thursday 1 December.

    confidence: determinate

Say it like this

In Baoding, Mitra Saptamī 1927 falls on Thursday 1 December. Saptamī runs from 23:46 on Wed 30 Nov to 22:54 on Thu 1 Dec and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1927/mitra-saptami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 1 Dec
Ahargaṇa, classicalDisc centre, no refractionThu 1 Dec
compat-drikpanchangComparison profileThu 1 Dec
No institution has a recorded ruling for Baoding.

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 30thCoveredMadhyāhna 1stCoveredRuled
Los Angeles07:46 → 06:5411:1748 min11:180 min30 Nov
Chicago09:46 → 08:5411:1548 min11:150 min30 Nov
Jersey City10:46 → 09:5411:2148 min11:210 min30 Nov
Port of Spain11:46 → 10:5411:3133 min11:310 min30 Nov
London15:46 → 14:5411:250 min11:2548 min1 Dec
Durban17:46 → 16:5411:200 min11:2148 min1 Dec
Dubai19:46 → 18:5411:430 min11:4348 min1 Dec
Delhi21:16 → 20:2411:450 min11:4648 min1 Dec
Kolkata21:16 → 20:2411:010 min11:0148 min1 Dec
Singapore22:46 → 21:5411:290 min11:2948 min1 Dec
Sydney01:46 → 00:5411:200 min11:2048 min1 Dec
Suva03:46 → 02:5411:310 min11:3148 min1 Dec
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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