Ruling · Mitra Saptamī · 1907

Wednesday 11 December

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 626 minutes.

Decide it for

BaodingDelhiKolkataSingaporeSydneyJersey City

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 Tuesday 10 December

Saptamī is absent from madhyāhna. Not taken.

madhyāhna begins 11:46  12:34 madhyāhna ends
10:5811:2211:4612:1012:3412:5813:22

0 of 48 minutes covered

Midday of Wednesday 11 December

Taken. The only midday Saptamī reaches.

madhyāhna begins 11:47  12:35 madhyāhna ends
10:5911:2311:4712:1112:3512:5913:23

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 00:53 on Wed 11 Dec to 23:01 on Wed 11 Dec.

    1907-12-10T16:52:43Z → 1907-12-11T15:00:49Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:46–12:34 on the 10th, 11:47–12:35 on the 11th.

    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 10th and 48 of 48 on the 11th.

    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 37557 s

  5. 05

    Ruling

    Mitra Saptamī, Baoding, 1907: Wednesday 11 December.

    confidence: determinate

Say it like this

In Baoding, Mitra Saptamī 1907 falls on Wednesday 11 December. Saptamī runs from 00:53 on Wed 11 Dec to 23:01 on Wed 11 Dec and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1907/mitra-saptami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 11 Dec
Ahargaṇa, classicalDisc centre, no refractionWed 11 Dec
compat-drikpanchangComparison profileWed 11 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 10thCoveredMadhyāhna 11thCoveredRuled
Los Angeles08:53 → 07:0111:2248 min11:220 min10 Dec
Chicago10:53 → 09:0111:1948 min11:200 min10 Dec
Jersey City11:53 → 10:0111:2520 min11:250 min10 Dec
Port of Spain12:53 → 11:0111:350 min11:350 min11 Dec
London16:53 → 15:0111:290 min11:2948 min11 Dec
Durban18:53 → 17:0111:240 min11:2548 min11 Dec
Dubai20:34 → 18:4211:280 min11:2948 min11 Dec
Delhi22:23 → 20:3111:490 min11:5048 min11 Dec
Kolkata22:23 → 20:3111:050 min11:0548 min11 Dec
Singapore23:53 → 22:0111:330 min11:3348 min11 Dec
Sydney02:53 → 01:0111:240 min11:2448 min11 Dec
Suva04:48 → 02:5611:300 min11:3048 min11 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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