Ruling · Nāga Caturthī · 1929

Tuesday 5 November

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 601 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 Tuesday 5 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 Wednesday 6 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 23:31 on Mon 4 Nov to 01:37 on Wed 6 Nov.

    1929-11-04T15:30:41Z → 1929-11-05T17:37:03Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:38–12:26 on the 5th, 11:38–12:26 on the 6th.

    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 5th and 0 of 48 on the 6th.

    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 36034 s

  5. 05

    Ruling

    Nāga Caturthī, Baoding, 1929: Tuesday 5 November.

    confidence: determinate

Say it like this

In Baoding, Nāga Caturthī 1929 falls on Tuesday 5 November. Caturthī runs from 23:31 on Mon 4 Nov to 01:37 on Wed 6 Nov and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1929/naga-chaturthi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 5 Nov
Ahargaṇa, classicalDisc centre, no refractionTue 5 Nov
compat-drikpanchangComparison profileTue 5 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 4thCoveredMadhyāhna 5thCoveredRuled
Los Angeles07:31 → 09:3711:1248 min11:120 min4 Nov
Chicago09:31 → 11:3711:1048 min11:1027 min5 Nov
Jersey City10:31 → 12:3711:1648 min11:1648 min5 Nov
Port of Spain11:31 → 13:3711:2643 min11:2648 min5 Nov
London15:31 → 17:3711:200 min11:2048 min5 Nov
Durban17:31 → 19:3711:160 min11:1648 min5 Nov
Dubai19:31 → 21:3711:380 min11:3848 min5 Nov
Delhi21:01 → 23:0711:410 min11:4148 min5 Nov
Kolkata21:01 → 23:0710:560 min10:5648 min5 Nov
Singapore22:31 → 00:3711:240 min11:2448 min5 Nov
Sydney01:31 → 03:3711:150 min11:1548 min5 Nov
Suva03:31 → 05:3711:260 min11:2648 min5 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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