Ruling · Gaṅgotpatti (Ganga Saptami) · 1989

Thursday 11 May

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 135 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 11 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

Midday of Friday 12 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

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

How it was decided

  1. 01

    Aṅga

    Saptamī runs from 09:44 on Thu 11 May to 10:36 on Fri 12 May.

    1989-05-11T00:43:41Z → 1989-05-12T01:36:12Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 12:51–13:39 on the 11th, 12:51–13:39 on the 12th.

    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 11th and 0 of 48 on the 12th.

    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 8072 s

  5. 05

    Ruling

    Gaṅgotpatti, Baoding, 1989: Thursday 11 May.

    confidence: determinate

Say it like this

In Baoding, Gaṅgotpatti (Ganga Saptami) 1989 falls on Thursday 11 May. Saptamī runs from 09:44 on Thu 11 May to 10:36 on Fri 12 May and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1989/gangotpatti · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 11 May
Ahargaṇa, classicalDisc centre, no refractionThu 11 May
compat-drikpanchangComparison profileThu 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 11thCoveredMadhyāhna 12thCoveredRuled
Los Angeles17:44 → 18:3612:2648 min12:260 min11 May
Chicago19:44 → 20:3612:2348 min12:230 min11 May
Jersey City20:44 → 21:3612:2948 min12:290 min11 May
Port of Spain20:44 → 21:3611:3848 min11:380 min11 May
London01:44 → 02:3612:3348 min12:330 min11 May
Durban02:44 → 03:3611:2848 min11:280 min11 May
Dubai04:44 → 05:3611:5148 min11:510 min11 May
Delhi06:14 → 07:0611:5448 min11:540 min11 May
Kolkata06:14 → 07:0611:0948 min11:090 min11 May
Singapore08:44 → 09:3612:3748 min12:370 min11 May
Sydney10:44 → 11:3611:2748 min11:279 min11 May
Suva12:44 → 13:3611:390 min11:3948 min12 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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