Ruling · Gaṅgotpatti (Ganga Saptami) · 1937

Sunday 16 May

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 477 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 Sunday 16 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

Midday of Monday 17 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

Saptamī presentMadhyāhna, the window the rule readsThe instant the tithi begins or ends

How it was decided

  1. 01

    Aṅga

    Saptamī runs from 03:53 on Sun 16 May to 03:00 on Mon 17 May.

    1937-05-15T19:53:24Z → 1937-05-16T18:59:46Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:51–12:39 on the 16th, 11:51–12:39 on the 17th.

    madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′

  3. 03

    Rule

    Saptamī must be present during madhyāhna. It covers 48 of 48 minutes on the 16th and 0 of 48 on the 17th.

    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 28635 s

  5. 05

    Ruling

    Gaṅgotpatti, Baoding, 1937: Sunday 16 May.

    confidence: determinate

Say it like this

In Baoding, Gaṅgotpatti (Ganga Saptami) 1937 falls on Sunday 16 May. Saptamī runs from 03:53 on Sun 16 May to 03:00 on Mon 17 May and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1937/gangotpatti · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSun 16 May
Ahargaṇa, classicalDisc centre, no refractionSun 16 May
compat-drikpanchangComparison profileSun 16 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 15thCoveredMadhyāhna 16thCoveredRuled
Los Angeles11:53 → 11:0011:2520 min11:250 min15 May
Chicago14:53 → 14:0012:230 min12:2348 min16 May
Jersey City15:53 → 15:0012:290 min12:2948 min16 May
Port of Spain15:53 → 15:0011:380 min11:3848 min16 May
London20:53 → 20:0012:330 min12:3348 min16 May
Durban21:53 → 21:0011:280 min11:2848 min16 May
Dubai23:53 → 23:0011:510 min11:5148 min16 May
Delhi01:23 → 00:3011:530 min11:5348 min16 May
Kolkata01:23 → 00:3011:090 min11:0948 min16 May
Singapore03:13 → 02:2011:570 min11:5748 min16 May
Sydney05:53 → 05:0011:270 min11:2748 min16 May
Suva07:53 → 07:0011:380 min11:3848 min16 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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