Ruling · Gaṅgotpatti (Ganga Saptami) · 1920

Saturday 24 April

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 9 min 12 s.

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 24 April

Taken. The only midday Saptamī reaches.

madhyāhna begins 11:53  12:41 madhyāhna ends
Saptamī begins 12:31:28
11:0511:2911:5312:1712:4113:0513:29

9 of 48 minutes covered, the last 9

Midday of Sunday 25 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

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

How it was decided

  1. 01

    Aṅga

    Saptamī runs from 12:31 on Sat 24 Apr to 10:22 on Sun 25 Apr.

    1920-04-24T04:31:28Z → 1920-04-25T02:22:23Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:53–12:41 on the 24th, 11:52–12:40 on the 25th.

    madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′

  3. 03

    Rule

    Saptamī must be present during madhyāhna. It covers 9 of 48 minutes on the 24th and 0 of 48 on the 25th.

    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 552 s

  5. 05

    Ruling

    Gaṅgotpatti, Baoding, 1920: Saturday 24 April.

    confidence: determinate

Say it like this

In Baoding, Gaṅgotpatti (Ganga Saptami) 1920 falls on Saturday 24 April. Saptamī runs from 12:31 on Sat 24 Apr to 10:22 on Sun 25 Apr and covers 9 of 48 minutes of madhyāhna that midday.

ahargana.org/baoding/festivals/1920/gangotpatti · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 24 Apr
Ahargaṇa, classicalDisc centre, no refractionSat 24 Apr
compat-drikpanchangComparison profileSat 24 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 24thCoveredMadhyāhna 25thCoveredRuled
Los Angeles20:31 → 18:2211:2748 min11:270 min24 Apr
Chicago22:31 → 20:2211:2548 min11:250 min24 Apr
Jersey City00:31 → 22:2212:3148 min12:310 min24 Apr
Port of Spain00:31 → 22:2211:4048 min11:400 min24 Apr
London05:31 → 03:2212:3548 min12:350 min24 Apr
Durban06:31 → 04:2211:3048 min11:300 min24 Apr
Dubai08:31 → 06:2211:5348 min11:530 min24 Apr
Delhi10:01 → 07:5211:5548 min11:550 min24 Apr
Kolkata10:01 → 07:5211:1148 min11:110 min24 Apr
Singapore11:31 → 09:2211:3948 min11:390 min24 Apr
Sydney14:31 → 12:2211:290 min11:2948 min25 Apr
Suva16:31 → 14:2211:400 min11:4048 min25 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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