Ruling · Gaṅgotpatti (Gaṅgā Saptamī) · 2001

Monday 30 April

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 91 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 Sunday 29 April

Saptamī is absent from madhyāhna. Not taken.

madhyāhna begins 11:52  12:40 madhyāhna ends
11:0411:2811:5212:1612:4013:0413:28

0 of 48 minutes covered

Midday of Monday 30 April

Taken. The only midday Saptamī reaches.

madhyāhna begins 11:52  12:40 madhyāhna ends
11:0411:2811:5212:1612:4013:0413:28

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 16:09 on Sun 29 Apr to 14:10 on Mon 30 Apr.

    2001-04-29T08:09:15Z → 2001-04-30T06:10:19Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:52–12:40 on the 29th, 11:52–12:40 on the 30th.

    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 29th and 48 of 48 on the 30th.

    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 5438 s

  5. 05

    Ruling

    Gaṅgotpatti, Baoding, 2001: Monday 30 April.

    confidence: determinate

Say it like this

In Baoding, Gaṅgotpatti (Ganga Saptami) 2001 falls on Monday 30 April. Saptamī runs from 16:09 on Sun 29 Apr to 14:10 on Mon 30 Apr and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/2001/gangotpatti · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingMon 30 Apr
Ahargaṇa, classicalDisc centre, no refractionMon 30 Apr
compat-drikpanchangComparison profileMon 30 Apr
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 29thCoveredMadhyāhna 30thCoveredRuled
Los Angeles01:09 → 23:1012:2648 min12:260 min29 Apr
Chicago03:09 → 01:1012:2448 min12:240 min29 Apr
Jersey City04:09 → 02:1012:3048 min12:300 min29 Apr
Port of Spain04:09 → 02:1011:3948 min11:390 min29 Apr
London09:09 → 07:1012:3448 min12:340 min29 Apr
Durban10:09 → 08:1011:2948 min11:290 min29 Apr
Dubai12:09 → 10:1011:5231 min11:520 min29 Apr
Delhi13:39 → 11:4011:550 min11:540 min30 Apr
Kolkata13:39 → 11:4011:100 min11:1030 min30 Apr
Singapore16:09 → 14:1012:380 min12:3848 min30 Apr
Sydney18:09 → 16:1011:280 min11:2848 min30 Apr
Suva20:09 → 18:1011:400 min11:3948 min30 Apr
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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