Ruling · Gaṅgotpatti (Ganga Saptami) · 1983

Thursday 19 May

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 28 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 Wednesday 18 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 Thursday 19 May

Taken. Saptamī reaches neither midday; the rule takes the second day.

madhyāhna begins 11:51  12:39 madhyāhna ends
Saptamī ends 11:22:25
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 13:40 on Wed 18 May to 11:22 on Thu 19 May.

    1983-05-18T05:40:28Z → 1983-05-19T03:22:26Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:51–12:39 on the 18th, 11:51–12:39 on the 19th.

    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 18th and 0 of 48 on the 19th.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102

  4. 04

    Tie-break

    Neither midday qualifies. The rule takes the second day.

    priority: purvaviddha → second-day · margin 1702 s

  5. 05

    Ruling

    Gaṅgotpatti, Baoding, 1983: Thursday 19 May.

    confidence: determinate

Say it like this

In Baoding, Gaṅgotpatti (Ganga Saptami) 1983 falls on Thursday 19 May. Saptamī runs from 13:40 on Wed 18 May to 11:22 on Thu 19 May, and reaches madhyāhna on neither day.

ahargana.org/baoding/festivals/1983/gangotpatti · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 19 May
Ahargaṇa, classicalDisc centre, no refractionThu 19 May
compat-drikpanchangComparison profileWed 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 18thCoveredMadhyāhna 19thCoveredRuled
Los Angeles22:40 → 20:2212:2648 min12:260 min18 May
Chicago00:40 → 22:2212:2348 min12:230 min18 May
Jersey City01:40 → 23:2212:2948 min12:290 min18 May
Port of Spain01:40 → 23:2211:3848 min11:390 min18 May
London06:40 → 04:2212:3348 min12:330 min18 May
Durban07:40 → 05:2211:2848 min11:280 min18 May
Dubai09:40 → 07:2211:5148 min11:510 min18 May
Delhi11:10 → 08:5211:5448 min11:540 min18 May
Kolkata11:10 → 08:5211:0947 min11:090 min18 May
Singapore13:40 → 11:2212:370 min12:370 min19 May
Sydney15:40 → 13:2211:270 min11:2748 min19 May
Suva17:40 → 15:2211:390 min11:3948 min19 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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