Ruling · Nāga Caturthī · 1926

Tuesday 9 November

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 650 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 8 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 Tuesday 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

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

How it was decided

  1. 01

    Aṅga

    Caturthī runs from 23:39 on Mon 8 Nov to 23:16 on Tue 9 Nov.

    1926-11-08T15:39:18Z → 1926-11-09T15:16:11Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:38–12:26 on the 8th, 11:38–12:26 on the 9th.

    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 8th and 48 of 48 on the 9th.

    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 39025 s

  5. 05

    Ruling

    Nāga Caturthī, Baoding, 1926: Tuesday 9 November.

    confidence: determinate

Say it like this

In Baoding, Nāga Caturthī 1926 falls on Tuesday 9 November. Caturthī runs from 23:39 on Mon 8 Nov to 23:16 on Tue 9 Nov and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1926/naga-chaturthi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 9 Nov
Ahargaṇa, classicalDisc centre, no refractionTue 9 Nov
compat-drikpanchangComparison profileTue 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 Angeles07:39 → 07:1611:1348 min11:130 min8 Nov
Chicago09:39 → 09:1611:1048 min11:100 min8 Nov
Jersey City10:39 → 10:1611:1648 min11:160 min8 Nov
Port of Spain11:39 → 11:1611:2635 min11:260 min8 Nov
London15:39 → 15:1611:200 min11:2048 min9 Nov
Durban17:39 → 17:1611:160 min11:1648 min9 Nov
Dubai19:39 → 19:1611:380 min11:3848 min9 Nov
Delhi21:09 → 20:4611:410 min11:4148 min9 Nov
Kolkata21:09 → 20:4610:560 min10:5648 min9 Nov
Singapore22:39 → 22:1611:240 min11:2448 min9 Nov
Sydney01:39 → 01:1611:150 min11:1548 min9 Nov
Suva03:39 → 03:1611:260 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