Ruling · Gaṅgotpatti (Ganga Saptami) · 1910

Sunday 15 May

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 564 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 Saturday 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 Sunday 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 22:18 on Sat 14 May to 22:03 on Sun 15 May.

    1910-05-14T14:18:20Z → 1910-05-15T14:03:06Z

  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 33869 s

  5. 05

    Ruling

    Gaṅgotpatti, Baoding, 1910: Sunday 15 May.

    confidence: determinate

Say it like this

In Baoding, Gaṅgotpatti (Ganga Saptami) 1910 falls on Sunday 15 May. Saptamī runs from 22:18 on Sat 14 May to 22:03 on Sun 15 May and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1910/gangotpatti · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSun 15 May
Ahargaṇa, classicalDisc centre, no refractionSun 15 May
compat-drikpanchangComparison profileSun 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 Angeles06:18 → 06:0311:2548 min11:250 min14 May
Chicago08:18 → 08:0311:2348 min11:230 min14 May
Jersey City09:18 → 09:0311:2948 min11:290 min14 May
Port of Spain10:18 → 10:0311:3848 min11:380 min14 May
London14:18 → 14:0311:330 min11:3348 min15 May
Durban16:18 → 16:0311:280 min11:2848 min15 May
Dubai17:59 → 17:4411:320 min11:3248 min15 May
Delhi19:48 → 19:3311:530 min11:5348 min15 May
Kolkata19:48 → 19:3311:090 min11:0948 min15 May
Singapore21:18 → 21:0311:370 min11:3748 min15 May
Sydney00:18 → 00:0311:270 min11:2748 min15 May
Suva02:13 → 01:5811:330 min11:3348 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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