Ruling · Nāga Caturthī · 2039

Saturday 19 November

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 488 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 Saturday 19 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

Midday of Sunday 20 November

Caturthī is absent from madhyāhna. Not taken.

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

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 03:31 on Sat 19 Nov to 00:26 on Sun 20 Nov.

    2039-11-18T19:31:18Z → 2039-11-19T16:26:16Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:39–12:27 on the 19th, 11:39–12:27 on the 20th.

    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 19th and 0 of 48 on the 20th.

    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 29278 s

  5. 05

    Ruling

    Nāga Caturthī, Baoding, 2039: Saturday 19 November.

    confidence: determinate

Say it like this

In Baoding, Nāga Caturthī 2039 falls on Saturday 19 November. Caturthī runs from 03:31 on Sat 19 Nov to 00:26 on Sun 20 Nov and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/2039/naga-chaturthi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 19 Nov
Ahargaṇa, classicalDisc centre, no refractionSat 19 Nov
compat-drikpanchangComparison profileSat 19 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 18thCoveredMadhyāhna 19thCoveredRuled
Los Angeles11:31 → 08:2611:1431 min11:140 min18 Nov
Chicago13:31 → 10:2611:120 min11:120 min19 Nov
Jersey City14:31 → 11:2611:170 min11:189 min19 Nov
Port of Spain15:31 → 12:2611:270 min11:2748 min19 Nov
London19:31 → 16:2611:210 min11:2248 min19 Nov
Durban21:31 → 18:2611:170 min11:1748 min19 Nov
Dubai23:31 → 20:2611:400 min11:4048 min19 Nov
Delhi01:01 → 21:5611:420 min11:4248 min19 Nov
Kolkata01:01 → 21:5610:580 min10:5848 min19 Nov
Singapore03:31 → 00:2612:260 min12:2648 min19 Nov
Sydney06:31 → 03:2612:160 min12:1748 min19 Nov
Suva07:31 → 04:2611:270 min11:2848 min19 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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