Ruling · Nāga Caturthī · 2083

Saturday 13 November

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 114 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 Friday 12 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 Saturday 13 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 17:27 on Fri 12 Nov to 14:21 on Sat 13 Nov.

    2083-11-12T09:27:22Z → 2083-11-13T06:20:41Z

  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 0 of 48 minutes on the 12th and 48 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 6859 s

  5. 05

    Ruling

    Nāga Caturthī, Baoding, 2083: Saturday 13 November.

    confidence: determinate

Say it like this

In Baoding, Nāga Caturthī 2083 falls on Saturday 13 November. Caturthī runs from 17:27 on Fri 12 Nov to 14:21 on Sat 13 Nov and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/2083/naga-chaturthi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 13 Nov
Ahargaṇa, classicalDisc centre, no refractionSat 13 Nov
compat-drikpanchangComparison profileSat 13 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 Angeles01:27 → 22:2111:1348 min11:130 min12 Nov
Chicago03:27 → 00:2111:1148 min11:110 min12 Nov
Jersey City04:27 → 01:2111:1648 min11:170 min12 Nov
Port of Spain05:27 → 02:2111:2648 min11:270 min12 Nov
London09:27 → 06:2111:2148 min11:210 min12 Nov
Durban11:27 → 08:2111:1637 min11:170 min12 Nov
Dubai13:27 → 10:2111:390 min11:390 min13 Nov
Delhi14:57 → 11:5111:410 min11:419 min13 Nov
Kolkata14:57 → 11:5110:570 min10:5748 min13 Nov
Singapore17:27 → 14:2112:250 min12:2548 min13 Nov
Sydney20:27 → 17:2112:160 min12:1648 min13 Nov
Suva21:27 → 18:2111:270 min11:2748 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

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