Ruling · Gaṇeśa Caturthī · 1920

Thursday 16 September

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 326 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 15 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

Midday of Thursday 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

Caturthī presentMadhyāhna, the window the rule readsThe instant the tithi begins or ends

How it was decided

  1. 01

    Aṅga

    Caturthī runs from 18:03 on Wed 15 Sep to 18:31 on Thu 16 Sep.

    1920-09-15T10:02:53Z → 1920-09-16T10:30:42Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:49–12:37 on the 15th, 11:49–12:37 on the 16th.

    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 15th and 48 of 48 on the 16th.

    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 19543 s

  5. 05

    Ruling

    Gaṇeśa Caturthī, Baoding, 1920: Thursday 16 September.

    confidence: determinate

Say it like this

In Baoding, Gaṇeśa Caturthī 1920 falls on Thursday 16 September. Caturthī runs from 18:03 on Wed 15 Sep to 18:31 on Thu 16 Sep and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1920/ganesha-chaturthi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 16 Sep
Ahargaṇa, classicalDisc centre, no refractionThu 16 Sep
compat-drikpanchangComparison profileThu 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 Angeles02:03 → 02:3111:2448 min11:230 min15 Sep
Chicago05:03 → 05:3112:2148 min12:210 min15 Sep
Jersey City06:03 → 06:3112:2748 min12:270 min15 Sep
Port of Spain06:03 → 06:3111:3748 min11:370 min15 Sep
London11:03 → 11:3112:3148 min12:310 min15 Sep
Durban12:03 → 12:3111:2712 min11:2748 min15 Sep
Dubai14:03 → 14:3111:500 min11:5048 min16 Sep
Delhi15:33 → 16:0111:520 min11:5248 min16 Sep
Kolkata15:33 → 16:0111:080 min11:0748 min16 Sep
Singapore17:03 → 17:3111:360 min11:3648 min16 Sep
Sydney20:03 → 20:3111:270 min11:2648 min16 Sep
Suva22:03 → 22:3111:380 min11:3748 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

About Ahargaṇa