Ruling · Nāga Caturthī · 2041

Tuesday 29 October

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 17 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 Monday 28 October

Qualifies with 26 of 48 minutes. Not taken.

madhyāhna begins 11:38  12:26 madhyāhna ends
Caturthī begins 11:59:52
10:5011:1411:3812:0212:2612:5013:14

26 of 48 minutes covered, the last 26

Midday of Tuesday 29 October

Taken. Both middays qualify; the rule takes the second.

madhyāhna begins 11:38  12:26 madhyāhna ends
Caturthī ends 11:54:59
10:5011:1411:3812:0212:2612:5013:14

17 of 48 minutes covered, the first 17

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

How it was decided

  1. 01

    Aṅga

    Caturthī runs from 12:00 on Mon 28 Oct to 11:55 on Tue 29 Oct.

    2041-10-28T03:59:53Z → 2041-10-29T03:55:00Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:38–12:26 on the 28th, 11:38–12:26 on the 29th.

    madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′

  3. 03

    Rule

    Caturthī must be present during madhyāhna. It covers 26 of 48 minutes on the 28th and 17 of 48 on the 29th.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104

  4. 04

    Tie-break

    Both middays qualify. Paraviddhā: the second is taken.

    priority: paraviddha → paraviddha · margin 1041 s

  5. 05

    Ruling

    Nāga Caturthī, Baoding, 2041: Tuesday 29 October.

    confidence: determinate

Say it like this

In Baoding, Nāga Caturthī 2041 falls on Tuesday 29 October. Caturthī runs from 12:00 on Mon 28 Oct to 11:55 on Tue 29 Oct and covers 17 of 48 minutes of madhyāhna that midday. It also reaches the previous midday for 26 minutes; by the rule the second midday is taken.

ahargana.org/baoding/festivals/2041/naga-chaturthi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 29 Oct
Ahargaṇa, classicalDisc centre, no refractionTue 29 Oct
compat-drikpanchangComparison profileTue 29 Oct
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 28thCoveredMadhyāhna 29thCoveredRuled
Los Angeles21:00 → 20:5512:1348 min12:120 min28 Oct
Chicago23:00 → 22:5512:1048 min12:100 min28 Oct
Jersey City00:00 → 23:5512:1648 min12:160 min28 Oct
Port of Spain00:00 → 23:5511:2648 min11:260 min28 Oct
London04:00 → 03:5511:2048 min11:200 min28 Oct
Durban06:00 → 05:5511:1648 min11:160 min28 Oct
Dubai08:00 → 07:5511:3848 min11:380 min28 Oct
Delhi09:30 → 09:2511:4148 min11:410 min28 Oct
Kolkata09:30 → 09:2510:5648 min10:560 min28 Oct
Singapore12:00 → 11:5512:2448 min12:240 min28 Oct
Sydney15:00 → 14:5512:150 min12:1548 min29 Oct
Suva16:00 → 15:5511:260 min11:2648 min29 Oct
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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