Ruling · Gaṅgotpatti (Ganga Saptami) · 1915

Friday 21 May

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 666 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 Friday 21 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 Saturday 22 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 00:02 on Fri 21 May to 00:44 on Sat 22 May.

    1915-05-20T16:01:38Z → 1915-05-21T16:44:25Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:51–12:39 on the 21st, 11:51–12:39 on the 22nd.

    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 21st and 0 of 48 on the 22nd.

    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 39984 s

  5. 05

    Ruling

    Gaṅgotpatti, Baoding, 1915: Friday 21 May.

    confidence: determinate

Say it like this

In Baoding, Gaṅgotpatti (Ganga Saptami) 1915 falls on Friday 21 May. Saptamī runs from 00:02 on Fri 21 May to 00:44 on Sat 22 May and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1915/gangotpatti · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingFri 21 May
Ahargaṇa, classicalDisc centre, no refractionFri 21 May
compat-drikpanchangComparison profileFri 21 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 20thCoveredMadhyāhna 21stCoveredRuled
Los Angeles08:02 → 08:4411:2648 min11:260 min20 May
Chicago10:02 → 10:4411:2348 min11:230 min20 May
Jersey City11:02 → 11:4411:2948 min11:2915 min20 May
Port of Spain12:02 → 12:4411:3825 min11:3948 min20 May
London16:02 → 16:4411:330 min11:3348 min21 May
Durban18:02 → 18:4411:280 min11:2848 min21 May
Dubai19:43 → 20:2511:320 min11:3248 min21 May
Delhi21:32 → 22:1411:540 min11:5448 min21 May
Kolkata21:32 → 22:1411:090 min11:0948 min21 May
Singapore23:02 → 23:4411:370 min11:3748 min21 May
Sydney02:02 → 02:4411:270 min11:2748 min21 May
Suva03:57 → 04:3911:340 min11:3448 min21 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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