Ruling · Gaṇeśa Caturthī · 2004

Saturday 18 September

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 360 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 Friday 17 September

Caturthī is absent from madhyāhna. Not taken.

madhyāhna begins 11:48  12:36 madhyāhna ends
11:0011:2411:4812:1212:3613:0013:24

0 of 48 minutes covered

Midday of Saturday 18 September

Taken. The only midday Caturthī reaches.

madhyāhna begins 11:48  12:36 madhyāhna ends
11:0011:2411:4812:1212:3613:0013:24

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 20:03 on Fri 17 Sep to 18:36 on Sat 18 Sep.

    2004-09-17T12:03:22Z → 2004-09-18T10:36:25Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:48–12:36 on the 17th, 11:48–12:36 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 0 of 48 minutes on the 17th and 48 of 48 on the 18th.

    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 21628 s

  5. 05

    Ruling

    Gaṇeśa Caturthī, Baoding, 2004: Saturday 18 September.

    confidence: determinate

Say it like this

In Baoding, Gaṇeśa Caturthī 2004 falls on Saturday 18 September. Caturthī runs from 20:03 on Fri 17 Sep to 18:36 on Sat 18 Sep and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/2004/ganesha-chaturthi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 18 Sep
Ahargaṇa, classicalDisc centre, no refractionSat 18 Sep
compat-drikpanchangComparison profileSat 18 Sep
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/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 17thCoveredMadhyāhna 18thCoveredRuled
Los Angeles05:03 → 03:3612:2348 min12:230 min17 Sep
Chicago07:03 → 05:3612:2148 min12:200 min17 Sep
Jersey City08:03 → 06:3612:2648 min12:260 min17 Sep
Port of Spain08:03 → 06:3611:3648 min11:360 min17 Sep
London13:03 → 11:3612:3015 min12:300 min17 Sep
Durban14:03 → 12:3611:260 min11:2648 min18 Sep
Dubai16:03 → 14:3611:490 min11:4948 min18 Sep
Delhi17:33 → 16:0611:510 min11:5148 min18 Sep
Kolkata17:33 → 16:0611:070 min11:0648 min18 Sep
Singapore20:03 → 18:3612:350 min12:3548 min18 Sep
Sydney22:03 → 20:3611:260 min11:2648 min18 Sep
Suva00:03 → 22:3611:370 min11:3748 min18 Sep
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

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