Ruling · Gaṅgotpatti (Ganga Saptami) · 2020

Thursday 30 April

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 270 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 Wednesday 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 Thursday 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 17:43 on Wed 29 Apr to 17:10 on Thu 30 Apr.

    2020-04-29T09:42:41Z → 2020-04-30T09:09:36Z

  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 16194 s

  5. 05

    Ruling

    Gaṅgotpatti, Baoding, 2020: Thursday 30 April.

    confidence: determinate

Say it like this

In Baoding, Gaṅgotpatti (Ganga Saptami) 2020 falls on Thursday 30 April. Saptamī runs from 17:43 on Wed 29 Apr to 17:10 on Thu 30 Apr and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/2020/gangotpatti · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 30 Apr
Ahargaṇa, classicalDisc centre, no refractionThu 30 Apr
compat-drikpanchangComparison profileThu 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 Angeles02:43 → 02:1012:2748 min12:260 min29 Apr
Chicago04:43 → 04:1012:2448 min12:240 min29 Apr
Jersey City05:43 → 05:1012:3048 min12:300 min29 Apr
Port of Spain05:43 → 05:1011:3948 min11:390 min29 Apr
London10:43 → 10:1012:3448 min12:340 min29 Apr
Durban11:43 → 11:1011:2934 min11:290 min29 Apr
Dubai13:43 → 13:1011:520 min11:5248 min30 Apr
Delhi15:13 → 14:4011:550 min11:5448 min30 Apr
Kolkata15:13 → 14:4011:100 min11:1048 min30 Apr
Singapore17:43 → 17:1012:380 min12:3848 min30 Apr
Sydney19:43 → 19:1011:280 min11:2848 min30 Apr
Suva21:43 → 21:1011:400 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

About Ahargaṇa