Ruling · Nāga Caturthī · 1985

Friday 15 November

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 9 min 46 s.

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 15 November

Taken. The only midday Caturthī reaches.

madhyāhna begins 11:39  12:27 madhyāhna ends
Caturthī begins 11:48:16
10:5111:1511:3912:0312:2712:5113:15

38 of 48 minutes covered, the last 38

Midday of Saturday 16 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 11:48 on Fri 15 Nov to 09:04 on Sat 16 Nov.

    1985-11-15T03:48:17Z → 1985-11-16T01:04:09Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:39–12:27 on the 15th, 11:39–12:27 on the 16th.

    madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′

  3. 03

    Rule

    Caturthī must be present during madhyāhna. It covers 38 of 48 minutes on the 15th and 0 of 48 on the 16th.

    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 586 s

  5. 05

    Ruling

    Nāga Caturthī, Baoding, 1985: Friday 15 November.

    confidence: determinate

Say it like this

In Baoding, Nāga Caturthī 1985 falls on Friday 15 November. Caturthī runs from 11:48 on Fri 15 Nov to 09:04 on Sat 16 Nov and covers 38 of 48 minutes of madhyāhna that midday.

ahargana.org/baoding/festivals/1985/naga-chaturthi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingFri 15 Nov
Ahargaṇa, classicalDisc centre, no refractionFri 15 Nov
compat-drikpanchangComparison profileFri 15 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 Angeles19:48 → 17:0411:1348 min11:140 min15 Nov
Chicago21:48 → 19:0411:1148 min11:110 min15 Nov
Jersey City22:48 → 20:0411:1748 min11:170 min15 Nov
Port of Spain23:48 → 21:0411:2748 min11:270 min15 Nov
London03:48 → 01:0411:2148 min11:210 min15 Nov
Durban05:48 → 03:0411:1748 min11:170 min15 Nov
Dubai07:48 → 05:0411:3948 min11:390 min15 Nov
Delhi09:18 → 06:3411:4248 min11:420 min15 Nov
Kolkata09:18 → 06:3410:5748 min10:570 min15 Nov
Singapore11:48 → 09:0412:2548 min12:250 min15 Nov
Sydney14:48 → 12:0412:160 min12:160 min16 Nov
Suva15:48 → 13:0411:270 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

About Ahargaṇa