Ruling · Nāga Caturthī · 1939

Wednesday 15 November

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 34 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 Tuesday 14 November

Caturthī is absent from madhyāhna. Not taken.

madhyāhna begins 11:38  12:26 madhyāhna ends
Caturthī begins 13:00:35
10:5011:1411:3812:0212:2612:5013:14

0 of 48 minutes covered

Midday of Wednesday 15 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

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

How it was decided

  1. 01

    Aṅga

    Caturthī runs from 13:01 on Tue 14 Nov to 13:19 on Wed 15 Nov.

    1939-11-14T05:00:35Z → 1939-11-15T05:19:11Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:38–12:26 on the 14th, 11:38–12:26 on the 15th.

    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 14th and 48 of 48 on the 15th.

    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 2058 s

  5. 05

    Ruling

    Nāga Caturthī, Baoding, 1939: Wednesday 15 November.

    confidence: determinate

Say it like this

In Baoding, Nāga Caturthī 1939 falls on Wednesday 15 November. Caturthī runs from 13:01 on Tue 14 Nov to 13:19 on Wed 15 Nov and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1939/naga-chaturthi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 15 Nov
Ahargaṇa, classicalDisc centre, no refractionWed 15 Nov
compat-drikpanchangComparison profileWed 15 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 14thCoveredMadhyāhna 15thCoveredRuled
Los Angeles21:01 → 21:1911:1348 min11:130 min14 Nov
Chicago23:01 → 23:1911:1148 min11:110 min14 Nov
Jersey City00:01 → 00:1911:1748 min11:170 min14 Nov
Port of Spain01:01 → 01:1911:2648 min11:270 min14 Nov
London06:01 → 06:1912:2148 min12:210 min14 Nov
Durban07:01 → 07:1911:1648 min11:170 min14 Nov
Dubai09:01 → 09:1911:3948 min11:390 min14 Nov
Delhi10:31 → 10:4911:4148 min11:410 min14 Nov
Kolkata10:31 → 10:4910:5748 min10:570 min14 Nov
Singapore12:21 → 12:3911:4512 min11:4548 min15 Nov
Sydney15:01 → 15:1911:160 min11:1648 min15 Nov
Suva17:01 → 17:1911:270 min11:2748 min15 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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