Ruling · Nāga Caturthī · 1928

Friday 16 November

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 446 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 Friday 16 November

Taken. The only midday Caturthī reaches.

madhyāhna begins 11:39  12:27 madhyāhna ends
10:5111:1511:3912:0312:2712:5113:15

48 of 48 minutes covered

Midday of Saturday 17 November

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

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

How it was decided

  1. 01

    Aṅga

    Caturthī runs from 01:39 on Fri 16 Nov to 04:13 on Sat 17 Nov.

    1928-11-15T17:39:00Z → 1928-11-16T20:12:38Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:39–12:27 on the 16th, 11:39–12:27 on the 17th.

    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 16th and 0 of 48 on the 17th.

    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 26777 s

  5. 05

    Ruling

    Nāga Caturthī, Baoding, 1928: Friday 16 November.

    confidence: determinate

Say it like this

In Baoding, Nāga Caturthī 1928 falls on Friday 16 November. Caturthī runs from 01:39 on Fri 16 Nov to 04:13 on Sat 17 Nov and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1928/naga-chaturthi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingFri 16 Nov
Ahargaṇa, classicalDisc centre, no refractionFri 16 Nov
compat-drikpanchangComparison profileFri 16 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 15thCoveredMadhyāhna 16thCoveredRuled
Los Angeles09:39 → 12:1311:1448 min11:1448 min16 Nov
Chicago11:39 → 14:1311:1120 min11:1148 min16 Nov
Jersey City12:39 → 15:1311:170 min11:1748 min16 Nov
Port of Spain13:39 → 16:1311:270 min11:2748 min16 Nov
London17:39 → 20:1311:210 min11:2148 min16 Nov
Durban19:39 → 22:1311:170 min11:1748 min16 Nov
Dubai21:39 → 00:1311:390 min11:3948 min16 Nov
Delhi23:09 → 01:4311:420 min11:4248 min16 Nov
Kolkata23:09 → 01:4310:570 min10:5748 min16 Nov
Singapore00:39 → 03:1311:250 min11:2548 min16 Nov
Sydney03:39 → 06:1311:160 min11:1648 min16 Nov
Suva05:39 → 08:1311:270 min11:2748 min16 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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