Ruling · Gopāṣṭamī (Goṣṭhāṣṭamī) · 2011

Thursday 3 November

Boundaryin Baoding, under the Rashtriya Panchang method. A threshold is only 0 min 28 s away. Say “contested”.

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 Wednesday 2 November

Aṣṭamī is absent from madhyāhna. Not taken.

madhyāhna begins 11:37  12:25 madhyāhna ends
Aṣṭamī begins 12:25:57
10:4911:1311:3712:0112:2512:4913:13

0 of 48 minutes covered

Midday of Thursday 3 November

Taken. The only midday Aṣṭamī reaches.

madhyāhna begins 11:37  12:25 madhyāhna ends
Aṣṭamī ends 13:01:11
10:4911:1311:3712:0112:2512:4913:13

48 of 48 minutes covered

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

How it was decided

  1. 01

    Aṅga

    Aṣṭamī runs from 12:26 on Wed 2 Nov to 13:01 on Thu 3 Nov.

    2011-11-02T04:25:57Z → 2011-11-03T05:01:11Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:37–12:25 on the 2nd, 11:37–12:25 on the 3rd.

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

  3. 03

    Rule

    Aṣṭamī must be present during madhyāhna. It covers 0 of 48 minutes on the 2nd and 48 of 48 on the 3rd.

    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: unstated → only-day · margin 28 s < 300 s

  5. 05

    Ruling

    Gopāṣṭamī, Baoding, 2011: Thursday 3 November.

    confidence: boundary (margin)

Say it like this

In Baoding, Gopāṣṭamī 2011 falls on Thursday 3 November. Aṣṭamī runs from 12:26 on Wed 2 Nov to 13:01 on Thu 3 Nov and covers all of madhyāhna that midday. It is 0 min 28 s from a threshold: treat the date as contested.

ahargana.org/baoding/festivals/2011/gopashtami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 3 Nov
Ahargaṇa, classicalDisc centre, no refractionThu 3 Nov
compat-drikpanchangComparison profileThu 3 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/gopashtami · ruleset 2026.3-draft

Month
Kārtika, amānta
Pakṣa · aṅga
Śukla · Aṣṭamī
Kāla
Madhyāhna
Priority
Unstated
Tie-break
Longer coverage, as a boundary
Reference
CRC 1955, p. 104

“S 8 Gopastami, Gosthastami.” Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104.

The same rule, elsewhere

Twelve places, west to east. Local clock times.

PlaceAṣṭamīMadhyāhna 2ndCoveredMadhyāhna 3rdCoveredRuled
Los Angeles21:26 → 22:0112:1248 min12:120 min2 Nov
Chicago23:26 → 00:0112:1048 min12:100 min2 Nov
Jersey City00:26 → 01:0112:1648 min12:160 min2 Nov
Port of Spain00:26 → 01:0111:2648 min11:260 min2 Nov
London04:26 → 05:0111:2048 min11:200 min2 Nov
Durban06:26 → 07:0111:1648 min11:160 min2 Nov
Dubai08:26 → 09:0111:3848 min11:380 min2 Nov
Delhi09:56 → 10:3111:4048 min11:400 min2 Nov
Kolkata09:56 → 10:3110:5648 min10:560 min2 Nov
Singapore12:26 → 13:0112:2446 min12:2437 min2 Nov
Sydney15:26 → 16:0112:150 min12:1548 min3 Nov
Suva17:26 → 18:0112:260 min12:2648 min3 Nov
Profile · tradition
pac-rp@2026.1 · smarta
Rule
gopashtami@2026.3-draft
Engine · kernel
0.1.0 · de440 7eef…ea74
Boundary margin
300 s

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