Ruling · Gaṅgotpatti (Ganga Saptami) · 2057

Friday 11 May

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 137 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 10 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 Friday 11 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 14:56 on Thu 10 May to 16:34 on Fri 11 May.

    2057-05-10T06:56:10Z → 2057-05-11T08:33:53Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:51–12:39 on the 10th, 11:51–12:39 on the 11th.

    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 10th and 48 of 48 on the 11th.

    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 8231 s

  5. 05

    Ruling

    Gaṅgotpatti, Baoding, 2057: Friday 11 May.

    confidence: determinate

Say it like this

In Baoding, Gaṅgotpatti (Ganga Saptami) 2057 falls on Friday 11 May. Saptamī runs from 14:56 on Thu 10 May to 16:34 on Fri 11 May and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/2057/gangotpatti · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingFri 11 May
Ahargaṇa, classicalDisc centre, no refractionFri 11 May
compat-drikpanchangComparison profileFri 11 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 10thCoveredMadhyāhna 11thCoveredRuled
Los Angeles23:56 → 01:3412:2648 min12:260 min10 May
Chicago01:56 → 03:3412:2348 min12:230 min10 May
Jersey City02:56 → 04:3412:2948 min12:290 min10 May
Port of Spain02:56 → 04:3411:3948 min11:390 min10 May
London07:56 → 09:3412:3448 min12:340 min10 May
Durban08:56 → 10:3411:2848 min11:280 min10 May
Dubai10:56 → 12:3411:5148 min11:5142 min10 May
Delhi12:26 → 14:0411:5416 min11:5448 min10 May
Kolkata12:26 → 14:0411:090 min11:0948 min11 May
Singapore14:56 → 16:3412:370 min12:3748 min11 May
Sydney16:56 → 18:3411:280 min11:2848 min11 May
Suva18:56 → 20:3411:390 min11:3948 min11 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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