Ruling · Nāga Caturthī · 2091

Wednesday 14 November

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 600 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 13 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

Midday of Wednesday 14 November

Taken. The only midday Caturthī reaches.

madhyāhna begins 11:39  12:27 madhyāhna ends
10:5111:1511:3912:0312:2712:5113:15

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 01:02 on Wed 14 Nov to 22:27 on Wed 14 Nov.

    2091-11-13T17:02:19Z → 2091-11-14T14:26:39Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:38–12:26 on the 13th, 11:39–12:27 on the 14th.

    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 13th and 48 of 48 on the 14th.

    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 36004 s

  5. 05

    Ruling

    Nāga Caturthī, Baoding, 2091: Wednesday 14 November.

    confidence: determinate

Say it like this

In Baoding, Nāga Caturthī 2091 falls on Wednesday 14 November. Caturthī runs from 01:02 on Wed 14 Nov to 22:27 on Wed 14 Nov and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/2091/naga-chaturthi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 14 Nov
Ahargaṇa, classicalDisc centre, no refractionWed 14 Nov
compat-drikpanchangComparison profileWed 14 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 13thCoveredMadhyāhna 14thCoveredRuled
Los Angeles09:02 → 06:2711:1348 min11:140 min13 Nov
Chicago11:02 → 08:2711:1148 min11:110 min13 Nov
Jersey City12:02 → 09:2711:172 min11:170 min13 Nov
Port of Spain13:02 → 10:2711:270 min11:270 min14 Nov
London17:02 → 14:2711:210 min11:2148 min14 Nov
Durban19:02 → 16:2711:170 min11:1748 min14 Nov
Dubai21:02 → 18:2711:390 min11:3948 min14 Nov
Delhi22:32 → 19:5711:410 min11:4248 min14 Nov
Kolkata22:32 → 19:5710:570 min10:5748 min14 Nov
Singapore01:02 → 22:2712:250 min12:2548 min14 Nov
Sydney04:02 → 01:2712:160 min12:1648 min14 Nov
Suva05:02 → 02:2711:270 min11:2748 min14 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