Ruling · Gaṅgotpatti (Gaṅgā Saptamī) · 2027

Wednesday 12 May

Determinatein Ujjain, under the Rashtriya Panchang method. Clear of every threshold by 626 minutes.

Decide it for

UjjainDelhiKolkataSingaporeSydneyJersey City

23°11′ N 75°47′ E · Asia/Kolkata · GeoNames 1253914

The two middays

One ghaṭī is 24 minutes. Madhyāhna is 1 ghaṭikā either side of midday.

Midday of Tuesday 11 May

Saptamī is absent from madhyāhna. Not taken.

madhyāhna begins 11:59  12:47 madhyāhna ends
11:1111:3511:5912:2312:4713:1113:35

0 of 48 minutes covered

Midday of Wednesday 12 May

Taken. The only midday Saptamī reaches.

madhyāhna begins 11:59  12:47 madhyāhna ends
11:1111:3511:5912:2312:4713:1113:35

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 01:24 on Wed 12 May to 23:13 on Wed 12 May.

    2027-05-11T19:54:14Z → 2027-05-12T17:43:30Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:59–12:47 on the 11th, 11:59–12:47 on the 12th.

    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 11th and 48 of 48 on the 12th.

    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 37565 s

  5. 05

    Ruling

    Gaṅgotpatti, Ujjain, 2027: Wednesday 12 May.

    confidence: determinate

Say it like this

In Ujjain, Gaṅgotpatti (Ganga Saptami) 2027 falls on Wednesday 12 May. Saptamī runs from 01:24 on Wed 12 May to 23:13 on Wed 12 May and covers all of madhyāhna that midday.

ahargana.org/ujjain/festivals/2027/gangotpatti · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 12 May
Ahargaṇa, classicalDisc centre, no refractionWed 12 May
compat-drikpanchangComparison profileWed 12 May
No institution has a recorded ruling for Ujjain.

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 11thCoveredMadhyāhna 12thCoveredRuled
Los Angeles12:54 → 10:4312:2619 min12:260 min11 May
Chicago14:54 → 12:4312:230 min12:2320 min12 May
Jersey City15:54 → 13:4312:290 min12:2948 min12 May
Port of Spain15:54 → 13:4311:390 min11:3948 min12 May
London20:54 → 18:4312:330 min12:3348 min12 May
Durban21:54 → 19:4311:280 min11:2848 min12 May
Dubai23:54 → 21:4311:510 min11:5148 min12 May
Delhi01:24 → 23:1311:540 min11:5448 min12 May
Kolkata01:24 → 23:1311:090 min11:0948 min12 May
Singapore03:54 → 01:4312:370 min12:3748 min12 May
Sydney05:54 → 03:4311:270 min11:2748 min12 May
Suva07:54 → 05:4311:390 min11:3948 min12 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