Ruling · Gaṅgotpatti (Ganga Saptami) · 2099

Monday 27 April

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 589 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 26 April

Saptamī is absent from madhyāhna. Not taken.

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

0 of 48 minutes covered

Midday of Monday 27 April

Taken. The only midday Saptamī reaches.

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

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 23:57 on Sun 26 Apr to 22:30 on Mon 27 Apr.

    2099-04-26T15:56:44Z → 2099-04-27T14:29:52Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:53–12:41 on the 26th, 11:53–12:41 on the 27th.

    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 26th and 48 of 48 on the 27th.

    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 35359 s

  5. 05

    Ruling

    Gaṅgotpatti, Baoding, 2099: Monday 27 April.

    confidence: determinate

Say it like this

In Baoding, Gaṅgotpatti (Ganga Saptami) 2099 falls on Monday 27 April. Saptamī runs from 23:57 on Sun 26 Apr to 22:30 on Mon 27 Apr and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/2099/gangotpatti · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingMon 27 Apr
Ahargaṇa, classicalDisc centre, no refractionMon 27 Apr
compat-drikpanchangComparison profileMon 27 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 26thCoveredMadhyāhna 27thCoveredRuled
Los Angeles08:57 → 07:3012:2748 min12:270 min26 Apr
Chicago10:57 → 09:3012:2548 min12:250 min26 Apr
Jersey City11:57 → 10:3012:3148 min12:310 min26 Apr
Port of Spain11:57 → 10:3011:4032 min11:400 min26 Apr
London16:57 → 15:3012:350 min12:3548 min27 Apr
Durban17:57 → 16:3011:300 min11:3048 min27 Apr
Dubai19:57 → 18:3011:530 min11:5348 min27 Apr
Delhi21:27 → 20:0011:560 min11:5548 min27 Apr
Kolkata21:27 → 20:0011:110 min11:1148 min27 Apr
Singapore23:57 → 22:3012:390 min12:3948 min27 Apr
Sydney01:57 → 00:3011:290 min11:2948 min27 Apr
Suva03:57 → 02:3011:400 min11:4048 min27 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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