Ruling · Gaṅgotpatti (Ganga Saptami) · 1932

Thursday 12 May

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 72 minutes.

Decide it for

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 12 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 Friday 13 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 10:38 on Thu 12 May to 10:23 on Fri 13 May.

    1932-05-12T02:38:21Z → 1932-05-13T02:23:27Z

  2. 02

    Kāla

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

    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 12th and 0 of 48 on the 13th.

    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 4340 s

  5. 05

    Ruling

    Gaṅgotpatti, Baoding, 1932: Thursday 12 May.

    confidence: determinate

Say it like this

In Baoding, Gaṅgotpatti (Ganga Saptami) 1932 falls on Thursday 12 May. Saptamī runs from 10:38 on Thu 12 May to 10:23 on Fri 13 May and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1932/gangotpatti · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 12 May
Ahargaṇa, classicalDisc centre, no refractionThu 12 May
compat-drikpanchangComparison profileThu 12 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 12thCoveredMadhyāhna 13thCoveredRuled
Los Angeles18:38 → 18:2311:2548 min11:250 min12 May
Chicago21:38 → 21:2312:2348 min12:230 min12 May
Jersey City22:38 → 22:2312:2948 min12:290 min12 May
Port of Spain22:38 → 22:2311:3848 min11:380 min12 May
London03:38 → 03:2312:3348 min12:330 min12 May
Durban04:38 → 04:2311:2848 min11:280 min12 May
Dubai06:38 → 06:2311:5148 min11:510 min12 May
Delhi08:08 → 07:5311:5348 min11:530 min12 May
Kolkata08:08 → 07:5311:0948 min11:090 min12 May
Singapore09:38 → 09:2311:3748 min11:370 min12 May
Sydney12:38 → 12:2311:270 min11:2748 min13 May
Suva14:38 → 14:2311:380 min11:3848 min13 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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