Ruling · Gaṅgotpatti (Ganga Saptami) · 1990

Tuesday 1 May

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 235 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 Monday 30 April

Saptamī is absent from madhyāhna. Not taken.

madhyāhna begins 12:52  13:40 madhyāhna ends
12:0412:2812:5213:1613:4014:0414:28

0 of 48 minutes covered

Midday of Tuesday 1 May

Taken. The only midday Saptamī reaches.

madhyāhna begins 12:52  13:40 madhyāhna ends
12:0412:2812:5213:1613:4014:0414:28

48 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 18:41 on Mon 30 Apr to 17:34 on Tue 1 May.

    1990-04-30T09:41:15Z → 1990-05-01T08:34:20Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 12:52–13:40 on the 30th, 12:52–13:40 on the 1st.

    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 30th and 48 of 48 on the 1st.

    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 14084 s

  5. 05

    Ruling

    Gaṅgotpatti, Baoding, 1990: Tuesday 1 May.

    confidence: determinate

Say it like this

In Baoding, Gaṅgotpatti (Ganga Saptami) 1990 falls on Tuesday 1 May. Saptamī runs from 18:41 on Mon 30 Apr to 17:34 on Tue 1 May and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1990/gangotpatti · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 1 May
Ahargaṇa, classicalDisc centre, no refractionTue 1 May
compat-drikpanchangComparison profileTue 1 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 30thCoveredMadhyāhna 1stCoveredRuled
Los Angeles02:41 → 01:3412:2648 min12:260 min30 Apr
Chicago04:41 → 03:3412:2448 min12:240 min30 Apr
Jersey City05:41 → 04:3412:3048 min12:300 min30 Apr
Port of Spain05:41 → 04:3411:3948 min11:390 min30 Apr
London10:41 → 09:3412:3448 min12:340 min30 Apr
Durban11:41 → 10:3411:2936 min11:290 min30 Apr
Dubai13:41 → 12:3411:520 min11:5242 min1 May
Delhi15:11 → 14:0411:550 min11:5448 min1 May
Kolkata15:11 → 14:0411:100 min11:1048 min1 May
Singapore17:41 → 16:3412:380 min12:3848 min1 May
Sydney19:41 → 18:3411:280 min11:2848 min1 May
Suva21:41 → 20:3411:390 min11:3948 min1 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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