Ruling · Gaṇeśa Caturthī · 2091

Sunday 16 September

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 245 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 16 September

Taken. The only midday Caturthī reaches.

madhyāhna begins 11:49  12:37 madhyāhna ends
11:0111:2511:4912:1312:3713:0113:25

48 of 48 minutes covered

Midday of Monday 17 September

Caturthī is absent from madhyāhna. Not taken.

madhyāhna begins 11:49  12:37 madhyāhna ends
11:0111:2511:4912:1312:3713:0113:25

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 07:44 on Sun 16 Sep to 04:32 on Mon 17 Sep.

    2091-09-15T23:44:13Z → 2091-09-16T20:31:40Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:49–12:37 on the 16th, 11:49–12:37 on the 17th.

    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 16th and 0 of 48 on the 17th.

    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 14690 s

  5. 05

    Ruling

    Gaṇeśa Caturthī, Baoding, 2091: Sunday 16 September.

    confidence: determinate

Say it like this

In Baoding, Gaṇeśa Caturthī 2091 falls on Sunday 16 September. Caturthī runs from 07:44 on Sun 16 Sep to 04:32 on Mon 17 Sep and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/2091/ganesha-chaturthi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSun 16 Sep
Ahargaṇa, classicalDisc centre, no refractionSun 16 Sep
compat-drikpanchangComparison profileSun 16 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 15thCoveredMadhyāhna 16thCoveredRuled
Los Angeles16:44 → 13:3212:240 min12:2448 min16 Sep
Chicago18:44 → 15:3212:220 min12:2148 min16 Sep
Jersey City19:44 → 16:3212:270 min12:2748 min16 Sep
Port of Spain19:44 → 16:3211:370 min11:3748 min16 Sep
London00:44 → 21:3212:310 min12:3148 min16 Sep
Durban01:44 → 22:3211:280 min11:2748 min16 Sep
Dubai03:44 → 00:3211:500 min11:5048 min16 Sep
Delhi05:14 → 02:0211:520 min11:5248 min16 Sep
Kolkata05:14 → 02:0211:080 min11:0848 min16 Sep
Singapore07:44 → 04:3212:360 min12:3648 min16 Sep
Sydney09:44 → 06:3211:270 min11:2748 min16 Sep
Suva11:44 → 08:3211:380 min11:3841 min16 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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