Ruling · Gaṅgotpatti (Ganga Saptami) · 1926

Tuesday 18 May

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 5 min 18 s.

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 Tuesday 18 May

Taken. Both middays qualify; the rule takes the first.

madhyāhna begins 11:51  12:39 madhyāhna ends
11:0311:2711:5112:1512:3913:0313:27

48 of 48 minutes covered

Midday of Wednesday 19 May

Qualifies with 43 of 48 minutes. Not taken.

madhyāhna begins 11:51  12:39 madhyāhna ends
Saptamī ends 12:33:23
11:0311:2711:5112:1512:3913:0313:27

43 of 48 minutes covered, the first 43

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

How it was decided

  1. 01

    Aṅga

    Saptamī runs from 10:09 on Tue 18 May to 12:33 on Wed 19 May.

    1926-05-18T02:09:06Z → 1926-05-19T04:33:24Z

  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 48 of 48 minutes on the 18th and 43 of 48 on the 19th.

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

  4. 04

    Tie-break

    Both middays qualify. Pūrvaviddhā: the first is taken.

    priority: purvaviddha → purvaviddha · margin 318 s

  5. 05

    Ruling

    Gaṅgotpatti, Baoding, 1926: Tuesday 18 May.

    confidence: determinate

Say it like this

In Baoding, Gaṅgotpatti (Ganga Saptami) 1926 falls on Tuesday 18 May. Saptamī runs from 10:09 on Tue 18 May to 12:33 on Wed 19 May and covers all of madhyāhna that midday. It also reaches the next midday for 43 minutes; by the rule the first midday is taken.

ahargana.org/baoding/festivals/1926/gangotpatti · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 18 May
Ahargaṇa, classicalDisc centre, no refractionTue 18 May
compat-drikpanchangComparison profileTue 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 Angeles18:09 → 20:3311:2548 min11:260 min18 May
Chicago21:09 → 23:3312:2348 min12:230 min18 May
Jersey City22:09 → 00:3312:2948 min12:290 min18 May
Port of Spain22:09 → 00:3311:3848 min11:380 min18 May
London03:09 → 05:3312:3348 min12:330 min18 May
Durban04:09 → 06:3311:2848 min11:280 min18 May
Dubai06:09 → 08:3311:5148 min11:510 min18 May
Delhi07:39 → 10:0311:5448 min11:540 min18 May
Kolkata07:39 → 10:0311:0948 min11:090 min18 May
Singapore09:09 → 11:3311:3748 min11:370 min18 May
Sydney12:09 → 14:3311:276 min11:2748 min18 May
Suva14:09 → 16:3311:380 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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