Ruling · Vināyaka Caturthī · 2026

Wednesday 20 May

Determinatein Ujjain, under the Rashtriya Panchang method. Clear of every threshold by 52 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 19 May

Caturthī 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 20 May

Taken. Caturthī reaches neither midday; the rule takes the second day.

madhyāhna begins 12:00  12:48 madhyāhna ends
11:1211:3612:0012:2412:4813:1213:36

0 of 48 minutes covered

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

How it was decided

  1. 01

    Aṅga

    Caturthī runs from 14:19 on Tue 19 May to 11:07 on Wed 20 May.

    2026-05-19T08:48:55Z → 2026-05-20T05:37:15Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:59–12:47 on the 19th, 12:00–12:48 on the 20th.

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

  3. 03

    Rule

    Caturthī must be present during madhyāhna. It covers 0 of 48 minutes on the 19th and 0 of 48 on the 20th.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108

  4. 04

    Tie-break

    Neither midday qualifies. The rule takes the second day.

    priority: unstated → second-day · margin 3136 s

  5. 05

    Ruling

    Vināyaka Caturthī, Ujjain, 2026: Wednesday 20 May.

    confidence: determinate

Say it like this

In Ujjain, Vināyaka Caturthī 2026 falls on Wednesday 20 May. Caturthī runs from 14:19 on Tue 19 May to 11:07 on Wed 20 May, and reaches madhyāhna on neither day.

ahargana.org/ujjain/festivals/2026/vinayaka-chaturthi?on=2026-05-20 · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 20 May
Ahargaṇa, classicalDisc centre, no refractionWed 20 May
compat-drikpanchangComparison profileWed 20 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/vinayaka-chaturthi · ruleset 2026.3-draft

Month
Every lunation
Pakṣa · aṅga
Śukla · Caturthī
Kāla
Madhyāhna
Priority
Unstated
Tie-break
Longer coverage, as a boundary
Reference
CRC 1955, p. 108

“The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday.” Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108.

The same rule, elsewhere

Twelve places, west to east. Local clock times.

PlaceCaturthīMadhyāhna 19thCoveredMadhyāhna 20thCoveredRuled
Los Angeles01:49 → 22:3712:2648 min12:260 min19 May
Chicago03:49 → 00:3712:2348 min12:230 min19 May
Jersey City04:49 → 01:3712:2948 min12:290 min19 May
Port of Spain04:49 → 01:3711:3948 min11:390 min19 May
London09:49 → 06:3712:3348 min12:330 min19 May
Durban10:49 → 07:3711:2848 min11:280 min19 May
Dubai12:49 → 09:3711:510 min11:510 min20 May
Delhi14:19 → 11:0711:540 min11:540 min20 May
Kolkata14:19 → 11:0711:090 min11:090 min20 May
Singapore16:49 → 13:3712:370 min12:3748 min20 May
Sydney18:49 → 15:3711:270 min11:2848 min20 May
Suva20:49 → 17:3711:390 min11:3948 min20 May
Profile · tradition
pac-rp@2026.1 · smarta
Rule
vinayaka-chaturthi@2026.3-draft
Engine · kernel
0.1.0 · de440 7eef…ea74
Boundary margin
300 s