Ruling · Gaṇeśa Caturthī (Vināyaka Caturthī) · 2025

Wednesday 27 August

Determinatein Ujjain, under the Rashtriya Panchang method. Clear of every threshold by 63 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 26 August

Caturthī is absent from madhyāhna. Not taken.

madhyāhna begins 12:05  12:53 madhyāhna ends
11:1711:4112:0512:2912:5313:1713:41

0 of 48 minutes covered

Midday of Wednesday 27 August

Taken. The only midday Caturthī reaches.

madhyāhna begins 12:04  12:52 madhyāhna ends
11:1611:4012:0412:2812:5213:1613:40

48 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 13:55 on Tue 26 Aug to 15:45 on Wed 27 Aug.

    2025-08-26T08:25:11Z → 2025-08-27T10:14:55Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 12:05–12:53 on the 26th, 12:04–12:52 on the 27th.

    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 26th and 48 of 48 on the 27th.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103

  4. 04

    Tie-break

    Only one midday qualifies. No tie-break is needed.

    priority: purvaviddha → only-day · margin 3758 s

  5. 05

    Ruling

    Gaṇeśa Caturthī, Ujjain, 2025: Wednesday 27 August.

    confidence: determinate

Say it like this

In Ujjain, Gaṇeśa Caturthī 2025 falls on Wednesday 27 August. Caturthī runs from 13:55 on Tue 26 Aug to 15:45 on Wed 27 Aug and covers all of madhyāhna that midday.

ahargana.org/ujjain/festivals/2025/ganesha-chaturthi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 27 Aug
Ahargaṇa, classicalDisc centre, no refractionWed 27 Aug
compat-drikpanchangComparison profileWed 27 Aug
Rashtriya PanchangPrincipal festivals, 2025-26Wed 27 Aug

Institutional rulings are recorded with a source address, and are never edited to agree.

The rule, as data

/rules/ganesha-chaturthi · ruleset 2026.3-draft

Month
Bhādrapada, amānta
Pakṣa · aṅga
Śukla · Caturthī
Kāla
Madhyāhna
Priority
Pūrvaviddhā
Tie-break
First day
Reference
CRC 1955, p. 103

“S 4 Varada caturthi (purvaviddha, madhyahnavyapini), Samvatsari parva (Jain-caturthi paksa), Saubhagya caturthi (Bengal), Ganesa caturthi (madhyahna vyapini and purvaviddha)” Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103.

The same rule, elsewhere

Twelve places, west to east. Local clock times.

PlaceCaturthīMadhyāhna 26thCoveredMadhyāhna 27thCoveredRuled
Los Angeles01:25 → 03:1512:3048 min12:300 min26 Aug
Chicago03:25 → 05:1512:2848 min12:280 min26 Aug
Jersey City04:25 → 06:1512:3448 min12:330 min26 Aug
Port of Spain04:25 → 06:1511:4448 min11:430 min26 Aug
London09:25 → 11:1512:3848 min12:370 min26 Aug
Durban10:25 → 12:1511:3448 min11:3441 min26 Aug
Dubai12:25 → 14:1511:5619 min11:5648 min26 Aug
Delhi13:55 → 15:4511:590 min11:5848 min27 Aug
Kolkata13:55 → 15:4511:140 min11:1448 min27 Aug
Singapore16:25 → 18:1512:420 min12:4248 min27 Aug
Sydney18:25 → 20:1511:330 min11:3348 min27 Aug
Suva20:25 → 22:1511:440 min11:4448 min27 Aug
Profile · tradition
pac-rp@2026.1 · smarta
Rule
ganesha-chaturthi@2026.3-draft
Engine · kernel
0.1.0 · de440 7eef…ea74
Boundary margin
300 s