Ruling · Gaṇeśa Caturthī · 1908

Monday 31 August

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 46 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 Sunday 30 August

Caturthī is absent from madhyāhna. Not taken.

madhyāhna begins 11:55  12:43 madhyāhna ends
Caturthī begins 13:28:17
11:0711:3111:5512:1912:4313:0713:31

0 of 48 minutes covered

Midday of Monday 31 August

Taken. The only midday Caturthī reaches.

madhyāhna begins 11:54  12:42 madhyāhna ends
11:0611:3011:5412:1812:4213:0613:30

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 13:28 on Sun 30 Aug to 15:05 on Mon 31 Aug.

    1908-08-30T05:28:17Z → 1908-08-31T07:04:40Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:55–12:43 on the 30th, 11:54–12:42 on the 31st.

    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 30th and 48 of 48 on the 31st.

    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 2746 s

  5. 05

    Ruling

    Gaṇeśa Caturthī, Baoding, 1908: Monday 31 August.

    confidence: determinate

Say it like this

In Baoding, Gaṇeśa Caturthī 1908 falls on Monday 31 August. Caturthī runs from 13:28 on Sun 30 Aug to 15:05 on Mon 31 Aug and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1908/ganesha-chaturthi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingMon 31 Aug
Ahargaṇa, classicalDisc centre, no refractionMon 31 Aug
compat-drikpanchangComparison profileSun 30 Aug
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 30thCoveredMadhyāhna 31stCoveredRuled
Los Angeles21:28 → 23:0511:2948 min11:290 min30 Aug
Chicago23:28 → 01:0511:2748 min11:260 min30 Aug
Jersey City00:28 → 02:0511:3348 min11:320 min30 Aug
Port of Spain01:28 → 03:0511:4348 min11:420 min30 Aug
London05:28 → 07:0511:3748 min11:360 min30 Aug
Durban07:28 → 09:0511:3348 min11:320 min30 Aug
Dubai09:09 → 10:4611:3648 min11:360 min30 Aug
Delhi10:58 → 12:3511:5848 min11:5737 min30 Aug
Kolkata10:58 → 12:3511:1348 min11:1348 min30 Aug
Singapore12:28 → 14:0511:411 min11:4148 min30 Aug
Sydney15:28 → 17:0511:320 min11:3248 min31 Aug
Suva17:23 → 19:0011:380 min11:3848 min31 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

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