Ruling · Vināyaka Caturthī · 2026

Friday 17 July

Determinatein Ujjain, under the Rashtriya Panchang method. Clear of every threshold by 341 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 Friday 17 July

Taken. The only midday Caturthī reaches.

madhyāhna begins 12:09  12:57 madhyāhna ends
11:2111:4512:0912:3312:5713:2113:45

48 of 48 minutes covered

Midday of Saturday 18 July

Caturthī is absent from madhyāhna. Not taken.

madhyāhna begins 12:09  12:57 madhyāhna ends
11:2111:4512:0912:3312:5713:2113:45

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 06:28 on Fri 17 Jul to 04:43 on Sat 18 Jul.

    2026-07-17T00:58:17Z → 2026-07-17T23:13:13Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 12:09–12:57 on the 17th, 12:09–12:57 on the 18th.

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

  3. 03

    Rule

    Caturthī must be present during madhyāhna. It covers 48 of 48 minutes on the 17th and 0 of 48 on the 18th.

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

  4. 04

    Tie-break

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

    priority: unstated → only-day · margin 20442 s

  5. 05

    Ruling

    Vināyaka Caturthī, Ujjain, 2026: Friday 17 July.

    confidence: determinate

Say it like this

In Ujjain, Vināyaka Caturthī 2026 falls on Friday 17 July. Caturthī runs from 06:28 on Fri 17 Jul to 04:43 on Sat 18 Jul and covers all of madhyāhna that midday.

ahargana.org/ujjain/festivals/2026/vinayaka-chaturthi?on=2026-07-17 · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingFri 17 Jul
Ahargaṇa, classicalDisc centre, no refractionFri 17 Jul
compat-drikpanchangComparison profileFri 17 Jul
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 17thCoveredMadhyāhna 18thCoveredRuled
Los Angeles17:58 → 16:1312:3548 min12:350 min17 Jul
Chicago19:58 → 18:1312:3348 min12:330 min17 Jul
Jersey City20:58 → 19:1312:3848 min12:380 min17 Jul
Port of Spain20:58 → 19:1311:4848 min11:480 min17 Jul
London01:58 → 00:1312:4248 min12:420 min17 Jul
Durban02:58 → 01:1311:3848 min11:380 min17 Jul
Dubai04:58 → 03:1312:0148 min12:010 min17 Jul
Delhi06:28 → 04:4312:0348 min12:030 min17 Jul
Kolkata06:28 → 04:4311:1948 min11:190 min17 Jul
Singapore08:58 → 07:1312:4748 min12:470 min17 Jul
Sydney10:58 → 09:1311:3748 min11:380 min17 Jul
Suva12:58 → 11:1311:490 min11:490 min18 Jul
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