Ruling · Mitra Saptamī · 1901

Wednesday 18 December

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 266 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 17 December

Saptamī is absent from madhyāhna. Not taken.

madhyāhna begins 11:50  12:38 madhyāhna ends
11:0211:2611:5012:1412:3813:0213:26

0 of 48 minutes covered

Midday of Wednesday 18 December

Taken. The only midday Saptamī reaches.

madhyāhna begins 11:50  12:38 madhyāhna ends
11:0211:2611:5012:1412:3813:0213:26

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 17:38 on Tue 17 Dec to 17:04 on Wed 18 Dec.

    1901-12-17T09:37:57Z → 1901-12-18T09:04:27Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:50–12:38 on the 17th, 11:50–12:38 on the 18th.

    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 17th and 48 of 48 on the 18th.

    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 15958 s

  5. 05

    Ruling

    Mitra Saptamī, Baoding, 1901: Wednesday 18 December.

    confidence: determinate

Say it like this

In Baoding, Mitra Saptamī 1901 falls on Wednesday 18 December. Saptamī runs from 17:38 on Tue 17 Dec to 17:04 on Wed 18 Dec and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1901/mitra-saptami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 18 Dec
Ahargaṇa, classicalDisc centre, no refractionWed 18 Dec
compat-drikpanchangComparison profileWed 18 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 17thCoveredMadhyāhna 18thCoveredRuled
Los Angeles01:38 → 01:0411:2548 min11:260 min17 Dec
Chicago03:38 → 03:0411:2348 min11:230 min17 Dec
Jersey City04:38 → 04:0411:2848 min11:290 min17 Dec
Port of Spain05:38 → 05:0411:3848 min11:390 min17 Dec
London09:38 → 09:0411:3248 min11:330 min17 Dec
Durban11:08 → 10:3410:5838 min10:580 min17 Dec
Dubai13:19 → 12:4511:320 min11:3248 min18 Dec
Delhi14:59 → 14:2511:440 min11:4448 min18 Dec
Kolkata14:59 → 14:2510:590 min11:0048 min18 Dec
Singapore16:33 → 15:5911:310 min11:3248 min18 Dec
Sydney19:38 → 19:0411:270 min11:2848 min18 Dec
Suva21:33 → 20:5911:330 min11:3448 min18 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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