Ruling · Nāga Pañcamī · 1941

Monday 28 July

Boundaryin Baoding, under the Rashtriya Panchang method. A threshold is only 2 min 51 s away. Say “contested”.

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 Monday 28 July

Taken. The only midday Pañcamī reaches.

madhyāhna begins 13:00  13:48 madhyāhna ends
Pañcamī begins 12:57:24
12:1212:3613:0013:2413:4814:1214:36

48 of 48 minutes covered

Midday of Tuesday 29 July

Pañcamī is absent from madhyāhna. Not taken.

madhyāhna begins 13:00  13:48 madhyāhna ends
12:1212:3613:0013:2413:4814:1214:36

0 of 48 minutes covered

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

How it was decided

  1. 01

    Aṅga

    Pañcamī runs from 12:57 on Mon 28 Jul to 11:19 on Tue 29 Jul.

    1941-07-28T03:57:24Z → 1941-07-29T02:18:33Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 13:00–13:48 on the 28th, 13:00–13:48 on the 29th.

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

  3. 03

    Rule

    Pañcamī must be present during madhyāhna. It covers 48 of 48 minutes on the 28th and 0 of 48 on the 29th.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103

  4. 04

    Tie-break

    Only one midday qualifies. No tie-break is needed.

    priority: paraviddha → only-day · margin 171 s < 300 s

  5. 05

    Ruling

    Nāga Pañcamī, Baoding, 1941: Monday 28 July.

    confidence: boundary (margin)

Say it like this

In Baoding, Nāga Pañcamī 1941 falls on Monday 28 July. Pañcamī runs from 12:57 on Mon 28 Jul to 11:19 on Tue 29 Jul and covers all of madhyāhna that midday. It is 2 min 51 s from a threshold: treat the date as contested.

ahargana.org/baoding/festivals/1941/naga-panchami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingMon 28 Jul
Ahargaṇa, classicalDisc centre, no refractionMon 28 Jul
compat-drikpanchangComparison profileMon 28 Jul
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-panchami · ruleset 2026.3-draft

Month
Śrāvaṇa, amānta
Pakṣa · aṅga
Śukla · Pañcamī
Kāla
Madhyāhna
Priority
Paraviddhā
Tie-break
Second day
Reference
CRC 1955, p. 103

“S 5 Naga pancami (paraviddha)” Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103.

The same rule, elsewhere

Twelve places, west to east. Local clock times.

PlacePañcamīMadhyāhna 28thCoveredMadhyāhna 29thCoveredRuled
Los Angeles19:57 → 18:1911:3548 min11:350 min28 Jul
Chicago22:57 → 21:1912:3348 min12:330 min28 Jul
Jersey City23:57 → 22:1912:3848 min12:380 min28 Jul
Port of Spain23:57 → 22:1911:4848 min11:480 min28 Jul
London05:57 → 04:1913:4248 min13:420 min28 Jul
Durban05:57 → 04:1911:3848 min11:380 min28 Jul
Dubai07:57 → 06:1912:0148 min12:010 min28 Jul
Delhi09:27 → 07:4912:0348 min12:030 min28 Jul
Kolkata09:27 → 07:4911:1948 min11:190 min28 Jul
Singapore11:17 → 09:3912:0748 min12:070 min28 Jul
Sydney13:57 → 12:1911:380 min11:3841 min29 Jul
Suva15:57 → 14:1911:490 min11:4948 min29 Jul
Profile · tradition
pac-rp@2026.1 · smarta
Rule
naga-panchami@2026.3-draft
Engine · kernel
0.1.0 · de440 7eef…ea74
Boundary margin
300 s

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