Ruling · Nāga Caturthī · 2048

Monday 9 November

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 503 minutes.

Decide it for

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 9 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

Midday of Tuesday 10 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

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

How it was decided

  1. 01

    Aṅga

    Caturthī runs from 03:15 on Mon 9 Nov to 00:15 on Tue 10 Nov.

    2048-11-08T19:14:31Z → 2048-11-09T16:15:11Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:38–12:26 on the 9th, 11:38–12:26 on the 10th.

    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 9th and 0 of 48 on the 10th.

    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 30197 s

  5. 05

    Ruling

    Nāga Caturthī, Baoding, 2048: Monday 9 November.

    confidence: determinate

Say it like this

In Baoding, Nāga Caturthī 2048 falls on Monday 9 November. Caturthī runs from 03:15 on Mon 9 Nov to 00:15 on Tue 10 Nov and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/2048/naga-chaturthi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingMon 9 Nov
Ahargaṇa, classicalDisc centre, no refractionMon 9 Nov
compat-drikpanchangComparison profileMon 9 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 8thCoveredMadhyāhna 9thCoveredRuled
Los Angeles11:15 → 08:1511:1346 min11:130 min8 Nov
Chicago13:15 → 10:1511:100 min11:100 min9 Nov
Jersey City14:15 → 11:1511:160 min11:160 min9 Nov
Port of Spain15:15 → 12:1511:260 min11:2648 min9 Nov
London19:15 → 16:1511:200 min11:2048 min9 Nov
Durban21:15 → 18:1511:160 min11:1648 min9 Nov
Dubai23:15 → 20:1511:380 min11:3948 min9 Nov
Delhi00:45 → 21:4511:410 min11:4148 min9 Nov
Kolkata00:45 → 21:4510:560 min10:5648 min9 Nov
Singapore03:15 → 00:1512:240 min12:2448 min9 Nov
Sydney06:15 → 03:1512:150 min12:1548 min9 Nov
Suva07:15 → 04:1511:260 min11:2648 min9 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