Ruling · Nāga Caturthī · 2047

Tuesday 22 October

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 537 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 21 October

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

Midday of Tuesday 22 October

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 00:29 on Tue 22 Oct to 21:23 on Tue 22 Oct.

    2047-10-21T16:28:40Z → 2047-10-22T13:22:59Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:39–12:27 on the 21st, 11:38–12:26 on the 22nd.

    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 21st and 48 of 48 on the 22nd.

    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 32192 s

  5. 05

    Ruling

    Nāga Caturthī, Baoding, 2047: Tuesday 22 October.

    confidence: determinate

Say it like this

In Baoding, Nāga Caturthī 2047 falls on Tuesday 22 October. Caturthī runs from 00:29 on Tue 22 Oct to 21:23 on Tue 22 Oct and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/2047/naga-chaturthi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 22 Oct
Ahargaṇa, classicalDisc centre, no refractionTue 22 Oct
compat-drikpanchangComparison profileTue 22 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 21stCoveredMadhyāhna 22ndCoveredRuled
Los Angeles09:29 → 06:2312:1348 min12:130 min21 Oct
Chicago11:29 → 08:2312:1148 min12:110 min21 Oct
Jersey City12:29 → 09:2312:1736 min12:170 min21 Oct
Port of Spain12:29 → 09:2311:270 min11:270 min22 Oct
London17:29 → 14:2312:210 min12:2148 min22 Oct
Durban18:29 → 15:2311:170 min11:1748 min22 Oct
Dubai20:29 → 17:2311:390 min11:3948 min22 Oct
Delhi21:59 → 18:5311:420 min11:4148 min22 Oct
Kolkata21:59 → 18:5310:570 min10:5748 min22 Oct
Singapore00:29 → 21:2312:250 min12:2548 min22 Oct
Sydney03:29 → 00:2312:160 min12:1648 min22 Oct
Suva04:29 → 01:2311:270 min11:2748 min22 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

About Ahargaṇa