Ruling · Gaṇeśa Caturthī · 1921

Monday 5 September

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 575 minutes.

Decide it for

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 Monday 5 September

Taken. The only midday Caturthī reaches.

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

48 of 48 minutes covered

Midday of Tuesday 6 September

Caturthī is absent from madhyāhna. Not taken.

madhyāhna begins 11:52  12:40 madhyāhna ends
11:0411:2811:5212:1612:4013:0413:28

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 02:18 on Mon 5 Sep to 00:20 on Tue 6 Sep.

    1921-09-04T18:17:33Z → 1921-09-05T16:19:48Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:53–12:41 on the 5th, 11:52–12:40 on the 6th.

    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 5th and 0 of 48 on the 6th.

    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 34509 s

  5. 05

    Ruling

    Gaṇeśa Caturthī, Baoding, 1921: Monday 5 September.

    confidence: determinate

Say it like this

In Baoding, Gaṇeśa Caturthī 1921 falls on Monday 5 September. Caturthī runs from 02:18 on Mon 5 Sep to 00:20 on Tue 6 Sep and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1921/ganesha-chaturthi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingMon 5 Sep
Ahargaṇa, classicalDisc centre, no refractionMon 5 Sep
compat-drikpanchangComparison profileMon 5 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 4thCoveredMadhyāhna 5thCoveredRuled
Los Angeles10:18 → 08:2011:2848 min11:270 min4 Sep
Chicago13:18 → 11:2012:250 min12:250 min5 Sep
Jersey City14:18 → 12:2012:310 min12:310 min5 Sep
Port of Spain14:18 → 12:2011:410 min11:4139 min5 Sep
London19:18 → 17:2012:350 min12:3548 min5 Sep
Durban20:18 → 18:2011:310 min11:3148 min5 Sep
Dubai22:18 → 20:2011:540 min11:5348 min5 Sep
Delhi23:48 → 21:5011:560 min11:5648 min5 Sep
Kolkata23:48 → 21:5011:120 min11:1148 min5 Sep
Singapore01:18 → 23:2011:400 min11:3948 min5 Sep
Sydney04:18 → 02:2011:310 min11:3048 min5 Sep
Suva06:18 → 04:2011:420 min11:4148 min5 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