Ruling · Gaṇeśa Caturthī · 1981

Wednesday 2 September

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 624 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 Wednesday 2 September

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

Midday of Thursday 3 September

Caturthī is absent from madhyāhna. Not taken.

madhyāhna begins 11:53  12:41 madhyāhna ends
11:0511:2911:5312:1712:4113:0513:29

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 00:00 on Tue 1 Sep to 01:30 on Thu 3 Sep.

    1981-09-01T15:59:46Z → 1981-09-02T17:29:38Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:54–12:42 on the 2nd, 11:53–12:41 on the 3rd.

    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 2nd and 0 of 48 on the 3rd.

    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 37417 s

  5. 05

    Ruling

    Gaṇeśa Caturthī, Baoding, 1981: Wednesday 2 September.

    confidence: determinate

Say it like this

In Baoding, Gaṇeśa Caturthī 1981 falls on Wednesday 2 September. Caturthī runs from 00:00 on Tue 1 Sep to 01:30 on Thu 3 Sep and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1981/ganesha-chaturthi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 2 Sep
Ahargaṇa, classicalDisc centre, no refractionWed 2 Sep
compat-drikpanchangComparison profileWed 2 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 1stCoveredMadhyāhna 2ndCoveredRuled
Los Angeles09:00 → 10:3012:2948 min12:280 min1 Sep
Chicago11:00 → 12:3012:2648 min12:264 min1 Sep
Jersey City12:00 → 13:3012:3248 min12:3248 min1 Sep
Port of Spain12:00 → 13:3011:4230 min11:4248 min1 Sep
London17:00 → 18:3012:360 min12:3648 min2 Sep
Durban18:00 → 19:3011:320 min11:3248 min2 Sep
Dubai20:00 → 21:3011:550 min11:5448 min2 Sep
Delhi21:30 → 23:0011:570 min11:5748 min2 Sep
Kolkata21:30 → 23:0011:120 min11:1248 min2 Sep
Singapore23:30 → 01:0012:110 min12:1048 min2 Sep
Sydney02:00 → 03:3011:310 min11:3148 min2 Sep
Suva04:00 → 05:3011:430 min11:4248 min2 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

About Ahargaṇa