Ruling · Gaṅgotpatti (Ganga Saptami) · 1945

Friday 18 May

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 257 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 Thursday 17 May

Saptamī is absent from madhyāhna. Not taken.

madhyāhna begins 12:51  13:39 madhyāhna ends
12:0312:2712:5113:1513:3914:0314:27

0 of 48 minutes covered

Midday of Friday 18 May

Taken. The only midday Saptamī reaches.

madhyāhna begins 12:51  13:39 madhyāhna ends
12:0312:2712:5113:1513:3914:0314:27

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 17:56 on Thu 17 May to 18:36 on Fri 18 May.

    1945-05-17T08:56:00Z → 1945-05-18T09:36:10Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 12:51–13:39 on the 17th, 12:51–13:39 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. 102

  4. 04

    Tie-break

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

    priority: purvaviddha → only-day · margin 15440 s

  5. 05

    Ruling

    Gaṅgotpatti, Baoding, 1945: Friday 18 May.

    confidence: determinate

Say it like this

In Baoding, Gaṅgotpatti (Ganga Saptami) 1945 falls on Friday 18 May. Saptamī runs from 17:56 on Thu 17 May to 18:36 on Fri 18 May and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1945/gangotpatti · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingFri 18 May
Ahargaṇa, classicalDisc centre, no refractionFri 18 May
compat-drikpanchangComparison profileFri 18 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 17thCoveredMadhyāhna 18thCoveredRuled
Los Angeles01:56 → 02:3612:2548 min12:250 min17 May
Chicago03:56 → 04:3612:2348 min12:230 min17 May
Jersey City04:56 → 05:3612:2948 min12:290 min17 May
Port of Spain05:56 → 06:3612:3848 min12:380 min17 May
London10:56 → 11:3613:3348 min13:330 min17 May
Durban10:56 → 11:3611:2848 min11:288 min17 May
Dubai12:56 → 13:3611:510 min11:5148 min18 May
Delhi15:26 → 16:0612:530 min12:5448 min18 May
Kolkata15:26 → 16:0612:090 min12:0948 min18 May
Singapore17:56 → 18:3613:370 min13:3748 min18 May
Sydney18:56 → 19:3611:270 min11:2748 min18 May
Suva20:56 → 21:3611:380 min11:3948 min18 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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