Ruling · Nāga Caturthī · 1912

Tuesday 12 November

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 39 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 12 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 Wednesday 13 November

Caturthī is absent from madhyāhna. Not taken.

madhyāhna begins 11:38  12:26 madhyāhna ends
Caturthī ends 10:59:22
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 09:52 on Tue 12 Nov to 10:59 on Wed 13 Nov.

    1912-11-12T01:51:36Z → 1912-11-13T02:59:23Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:38–12:26 on the 12th, 11:38–12:26 on the 13th.

    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 12th and 0 of 48 on the 13th.

    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 2332 s

  5. 05

    Ruling

    Nāga Caturthī, Baoding, 1912: Tuesday 12 November.

    confidence: determinate

Say it like this

In Baoding, Nāga Caturthī 1912 falls on Tuesday 12 November. Caturthī runs from 09:52 on Tue 12 Nov to 10:59 on Wed 13 Nov and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1912/naga-chaturthi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 12 Nov
Ahargaṇa, classicalDisc centre, no refractionTue 12 Nov
compat-drikpanchangComparison profileTue 12 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 12thCoveredMadhyāhna 13thCoveredRuled
Los Angeles17:52 → 18:5911:1348 min11:130 min12 Nov
Chicago19:52 → 20:5911:1148 min11:110 min12 Nov
Jersey City20:52 → 21:5911:1648 min11:160 min12 Nov
Port of Spain21:52 → 22:5911:2648 min11:260 min12 Nov
London01:52 → 02:5911:2048 min11:210 min12 Nov
Durban03:52 → 04:5911:1648 min11:160 min12 Nov
Dubai05:33 → 06:4011:2048 min11:200 min12 Nov
Delhi07:22 → 08:2911:4148 min11:410 min12 Nov
Kolkata07:22 → 08:2910:5748 min10:570 min12 Nov
Singapore08:52 → 09:5911:2548 min11:250 min12 Nov
Sydney11:52 → 12:5911:1612 min11:1648 min13 Nov
Suva13:47 → 14:5411:220 min11:2248 min13 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