Ruling · Nāga Caturthī · 2097

Friday 8 November

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 134 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 Thursday 7 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 Friday 8 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 14:40 on Thu 7 Nov to 16:57 on Fri 8 Nov.

    2097-11-07T06:40:18Z → 2097-11-08T08:57:24Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:38–12:26 on the 7th, 11:38–12:26 on the 8th.

    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 7th and 48 of 48 on the 8th.

    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 8063 s

  5. 05

    Ruling

    Nāga Caturthī, Baoding, 2097: Friday 8 November.

    confidence: determinate

Say it like this

In Baoding, Nāga Caturthī 2097 falls on Friday 8 November. Caturthī runs from 14:40 on Thu 7 Nov to 16:57 on Fri 8 Nov and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/2097/naga-chaturthi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingFri 8 Nov
Ahargaṇa, classicalDisc centre, no refractionFri 8 Nov
compat-drikpanchangComparison profileFri 8 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 7thCoveredMadhyāhna 8thCoveredRuled
Los Angeles22:40 → 00:5711:1348 min11:130 min7 Nov
Chicago00:40 → 02:5711:1048 min11:100 min7 Nov
Jersey City01:40 → 03:5711:1648 min11:160 min7 Nov
Port of Spain02:40 → 04:5711:2648 min11:260 min7 Nov
London06:40 → 08:5711:2048 min11:200 min7 Nov
Durban08:40 → 10:5711:1648 min11:160 min7 Nov
Dubai10:40 → 12:5711:3948 min11:3948 min8 Nov
Delhi12:10 → 14:2711:4119 min11:4148 min8 Nov
Kolkata12:10 → 14:2710:560 min10:5748 min8 Nov
Singapore14:40 → 16:5712:250 min12:2548 min8 Nov
Sydney17:40 → 19:5712:150 min12:1548 min8 Nov
Suva18:40 → 20:5711:260 min11:2648 min8 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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