Ruling · Nāga Caturthī · 1989

Thursday 2 November

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 222 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 Thursday 2 November

Taken. The only midday Caturthī reaches.

madhyāhna begins 11:38  12:26 madhyāhna ends
10:5011:1411:3812:0212:2612:5013:14

48 of 48 minutes covered

Midday of Friday 3 November

Caturthī is absent from madhyāhna. Not taken.

madhyāhna begins 11:38  12:26 madhyāhna ends
10:5011:1411:3812:0212:2612:5013:14

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 06:11 on Thu 2 Nov to 07:56 on Fri 3 Nov.

    1989-11-01T22:11:29Z → 1989-11-02T23:55:53Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:38–12:26 on the 2nd, 11:38–12:26 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. 104

  4. 04

    Tie-break

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

    priority: paraviddha → only-day · margin 13297 s

  5. 05

    Ruling

    Nāga Caturthī, Baoding, 1989: Thursday 2 November.

    confidence: determinate

Say it like this

In Baoding, Nāga Caturthī 1989 falls on Thursday 2 November. Caturthī runs from 06:11 on Thu 2 Nov to 07:56 on Fri 3 Nov and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1989/naga-chaturthi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 2 Nov
Ahargaṇa, classicalDisc centre, no refractionThu 2 Nov
compat-drikpanchangComparison profileThu 2 Nov
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/naga-chaturthi · ruleset 2026.3-draft

Month
Kārtika, amānta
Pakṣa · aṅga
Śukla · Caturthī
Kāla
Madhyāhna
Priority
Paraviddhā
Tie-break
Second day
Reference
CRC 1955, p. 104

“S 4 Naga caturthi (paraviddha and madhyahnavyapini).” Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104.

The same rule, elsewhere

Twelve places, west to east. Local clock times.

PlaceCaturthīMadhyāhna 1stCoveredMadhyāhna 2ndCoveredRuled
Los Angeles14:11 → 15:5611:120 min11:1248 min2 Nov
Chicago16:11 → 17:5611:100 min11:1048 min2 Nov
Jersey City17:11 → 18:5611:160 min11:1648 min2 Nov
Port of Spain18:11 → 19:5611:260 min11:2648 min2 Nov
London22:11 → 23:5611:200 min11:2048 min2 Nov
Durban00:11 → 01:5611:160 min11:1648 min2 Nov
Dubai02:11 → 03:5611:380 min11:3848 min2 Nov
Delhi03:41 → 05:2611:410 min11:4148 min2 Nov
Kolkata03:41 → 05:2610:560 min10:5648 min2 Nov
Singapore06:11 → 07:5612:240 min12:2448 min2 Nov
Sydney09:11 → 10:5612:150 min12:1548 min2 Nov
Suva10:11 → 11:5611:260 min11:2648 min3 Nov
Profile · tradition
pac-rp@2026.1 · smarta
Rule
naga-chaturthi@2026.3-draft
Engine · kernel
0.1.0 · de440 7eef…ea74
Boundary margin
300 s

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