Ruling · Nāga Caturthī · 1986

Wednesday 5 November

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 423 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 Wednesday 5 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 Thursday 6 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 04:34 on Wed 5 Nov to 01:26 on Thu 6 Nov.

    1986-11-04T20:34:07Z → 1986-11-05T17:26:24Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:38–12:26 on the 5th, 11:38–12:26 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. 104

  4. 04

    Tie-break

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

    priority: paraviddha → only-day · margin 25404 s

  5. 05

    Ruling

    Nāga Caturthī, Baoding, 1986: Wednesday 5 November.

    confidence: determinate

Say it like this

In Baoding, Nāga Caturthī 1986 falls on Wednesday 5 November. Caturthī runs from 04:34 on Wed 5 Nov to 01:26 on Thu 6 Nov and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1986/naga-chaturthi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 5 Nov
Ahargaṇa, classicalDisc centre, no refractionWed 5 Nov
compat-drikpanchangComparison profileWed 5 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 4thCoveredMadhyāhna 5thCoveredRuled
Los Angeles12:34 → 09:2611:120 min11:120 min5 Nov
Chicago14:34 → 11:2611:100 min11:1016 min5 Nov
Jersey City15:34 → 12:2611:160 min11:1648 min5 Nov
Port of Spain16:34 → 13:2611:260 min11:2648 min5 Nov
London20:34 → 17:2611:200 min11:2048 min5 Nov
Durban22:34 → 19:2611:160 min11:1648 min5 Nov
Dubai00:34 → 21:2611:380 min11:3848 min5 Nov
Delhi02:04 → 22:5611:400 min11:4148 min5 Nov
Kolkata02:04 → 22:5610:560 min10:5648 min5 Nov
Singapore04:34 → 01:2612:240 min12:2448 min5 Nov
Sydney07:34 → 04:2612:150 min12:1548 min5 Nov
Suva08:34 → 05:2611:260 min11:2648 min5 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

About Ahargaṇa