Ruling · Gaṇeśa Jayantī (Maghi Ganesh Jayanti) · 1997

Monday 10 February

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 14 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 Monday 10 February

Taken. The only midday Caturthī reaches.

madhyāhna begins 12:09  12:57 madhyāhna ends
Caturthī begins 12:22:40
11:2111:4512:0912:3312:5713:2113:45

34 of 48 minutes covered, the last 34

Midday of Tuesday 11 February

Caturthī is absent from madhyāhna. Not taken.

madhyāhna begins 12:09  12:57 madhyāhna ends
11:2111:4512:0912:3312:5713:2113:45

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 12:23 on Mon 10 Feb to 09:34 on Tue 11 Feb.

    1997-02-10T04:22:41Z → 1997-02-11T01:34:02Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 12:09–12:57 on the 10th, 12:09–12:57 on the 11th.

    madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′

  3. 03

    Rule

    Caturthī must be present during madhyāhna. It covers 34 of 48 minutes on the 10th and 0 of 48 on the 11th.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105

  4. 04

    Tie-break

    Only one midday qualifies. No tie-break is needed.

    priority: purvaviddha → only-day · margin 841 s

  5. 05

    Ruling

    Gaṇeśa Jayantī, Baoding, 1997: Monday 10 February.

    confidence: determinate

Say it like this

In Baoding, Gaṇeśa Jayantī (Maghi Ganesh Jayanti) 1997 falls on Monday 10 February. Caturthī runs from 12:23 on Mon 10 Feb to 09:34 on Tue 11 Feb and covers 34 of 48 minutes of madhyāhna that midday.

ahargana.org/baoding/festivals/1997/ganesha-jayanti · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingMon 10 Feb
Ahargaṇa, classicalDisc centre, no refractionMon 10 Feb
compat-drikpanchangComparison profileMon 10 Feb
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-jayanti · ruleset 2026.3-draft

Month
Māgha, amānta
Pakṣa · aṅga
Śukla · Caturthī
Kāla
Madhyāhna
Priority
Pūrvaviddhā
Tie-break
First day
Reference
CRC 1955, p. 105

“S 4 Tila caturthi and Kunda caturthi (pradosavyapini), Varada caturthi (Bengal & Orissa), Ganesa caturthi, Ganesa jayanti (madhyahnavyapini purvaviddha).” Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105.

The same rule, elsewhere

Twelve places, west to east. Local clock times.

PlaceCaturthīMadhyāhna 10thCoveredMadhyāhna 11thCoveredRuled
Los Angeles20:23 → 17:3411:4348 min11:430 min10 Feb
Chicago22:23 → 19:3411:4148 min11:410 min10 Feb
Jersey City23:23 → 20:3411:4748 min11:470 min10 Feb
Port of Spain00:23 → 21:3411:5648 min11:560 min10 Feb
London04:23 → 01:3411:5148 min11:510 min10 Feb
Durban06:23 → 03:3411:4648 min11:460 min10 Feb
Dubai08:23 → 05:3412:0948 min12:090 min10 Feb
Delhi09:53 → 07:0412:1248 min12:120 min10 Feb
Kolkata09:53 → 07:0411:2748 min11:270 min10 Feb
Singapore12:23 → 09:3412:5548 min12:550 min10 Feb
Sydney15:23 → 12:3412:450 min12:450 min11 Feb
Suva16:23 → 13:3411:560 min11:5648 min11 Feb
Profile · tradition
pac-rp@2026.1 · smarta
Rule
ganesha-jayanti@2026.3-draft
Engine · kernel
0.1.0 · de440 7eef…ea74
Boundary margin
300 s

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