Ruling · Gaṅgotpatti (Ganga Saptami) · 1975

Saturday 17 May

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 133 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 Saturday 17 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 Sunday 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

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

How it was decided

  1. 01

    Aṅga

    Saptamī runs from 09:37 on Sat 17 May to 07:35 on Sun 18 May.

    1975-05-17T01:37:28Z → 1975-05-17T23:34:58Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:51–12:39 on the 17th, 11:51–12:39 on the 18th.

    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 17th and 0 of 48 on the 18th.

    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 7996 s

  5. 05

    Ruling

    Gaṅgotpatti, Baoding, 1975: Saturday 17 May.

    confidence: determinate

Say it like this

In Baoding, Gaṅgotpatti (Ganga Saptami) 1975 falls on Saturday 17 May. Saptamī runs from 09:37 on Sat 17 May to 07:35 on Sun 18 May and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1975/gangotpatti · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 17 May
Ahargaṇa, classicalDisc centre, no refractionSat 17 May
compat-drikpanchangComparison profileSat 17 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 17thCoveredMadhyāhna 18thCoveredRuled
Los Angeles18:37 → 16:3512:2648 min12:260 min17 May
Chicago20:37 → 18:3512:2348 min12:230 min17 May
Jersey City21:37 → 19:3512:2948 min12:290 min17 May
Port of Spain21:37 → 19:3511:3848 min11:380 min17 May
London02:37 → 00:3512:3348 min12:330 min17 May
Durban03:37 → 01:3511:2848 min11:280 min17 May
Dubai05:37 → 03:3511:5148 min11:510 min17 May
Delhi07:07 → 05:0511:5448 min11:540 min17 May
Kolkata07:07 → 05:0511:0948 min11:090 min17 May
Singapore09:07 → 07:0512:0748 min12:070 min17 May
Sydney11:37 → 09:3511:2738 min11:270 min17 May
Suva13:37 → 11:3511:390 min11:390 min18 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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