Ruling · Gaṅgotpatti (Ganga Saptami) · 1929

Wednesday 15 May

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 306 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 14 May

Saptamī is absent from madhyāhna. Not taken.

madhyāhna begins 11:51  12:39 madhyāhna ends
11:0311:2711:5112:1512:3913:0313:27

0 of 48 minutes covered

Midday of Wednesday 15 May

Taken. The only midday Saptamī reaches.

madhyāhna begins 11:51  12:39 madhyāhna ends
11:0311:2711:5112:1512:3913:0313:27

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 19:45 on Tue 14 May to 17:44 on Wed 15 May.

    1929-05-14T11:45:18Z → 1929-05-15T09:44:26Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:51–12:39 on the 14th, 11:51–12:39 on the 15th.

    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 14th and 48 of 48 on the 15th.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102

  4. 04

    Tie-break

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

    priority: purvaviddha → only-day · margin 18348 s

  5. 05

    Ruling

    Gaṅgotpatti, Baoding, 1929: Wednesday 15 May.

    confidence: determinate

Say it like this

In Baoding, Gaṅgotpatti (Ganga Saptami) 1929 falls on Wednesday 15 May. Saptamī runs from 19:45 on Tue 14 May to 17:44 on Wed 15 May and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1929/gangotpatti · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 15 May
Ahargaṇa, classicalDisc centre, no refractionWed 15 May
compat-drikpanchangComparison profileWed 15 May
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/gangotpatti · ruleset 2026.3-draft

Month
Vaiśākha, amānta
Pakṣa · aṅga
Śukla · Saptamī
Kāla
Madhyāhna
Priority
Pūrvaviddhā
Tie-break
First day
Reference
CRC 1955, p. 102

“S 7 Gangotpatti, (madhyahna vyapini, if occurs on two successive days, the first day is to be observed), Jahnu saptami, Sarkara saptami.” Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102.

The same rule, elsewhere

Twelve places, west to east. Local clock times.

PlaceSaptamīMadhyāhna 14thCoveredMadhyāhna 15thCoveredRuled
Los Angeles03:45 → 01:4411:2548 min11:250 min14 May
Chicago06:45 → 04:4412:2348 min12:230 min14 May
Jersey City07:45 → 05:4412:2948 min12:290 min14 May
Port of Spain07:45 → 05:4411:3848 min11:380 min14 May
London12:45 → 10:4412:3336 min12:330 min14 May
Durban13:45 → 11:4411:280 min11:2816 min15 May
Dubai15:45 → 13:4411:510 min11:5148 min15 May
Delhi17:15 → 15:1411:530 min11:5348 min15 May
Kolkata17:15 → 15:1411:090 min11:0948 min15 May
Singapore18:45 → 16:4411:370 min11:3748 min15 May
Sydney21:45 → 19:4411:270 min11:2748 min15 May
Suva23:45 → 21:4411:380 min11:3848 min15 May
Profile · tradition
pac-rp@2026.1 · smarta
Rule
gangotpatti@2026.3-draft
Engine · kernel
0.1.0 · de440 7eef…ea74
Boundary margin
300 s

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