Ruling · Gopāṣṭamī (Goṣṭhāṣṭamī) · 1983

Saturday 12 November

Boundaryin Baoding, under the Rashtriya Panchang method. Both middays qualify and the rule does not say which to take. 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 Saturday 12 November

Taken. Both middays qualify; the rule is silent, and this one is covered longer.

madhyāhna begins 11:38  12:26 madhyāhna ends
10:5011:1411:3812:0212:2612:5013:14

48 of 48 minutes covered

Midday of Sunday 13 November

Qualifies with 48 of 48 minutes. Not taken.

madhyāhna begins 11:38  12:26 madhyāhna ends
Aṣṭamī ends 13:05:02
10:5011:1411:3812:0212:2612:5013:14

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 10:34 on Sat 12 Nov to 13:05 on Sun 13 Nov.

    1983-11-12T02:34:08Z → 1983-11-13T05:05:03Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:38–12:26 on the 12th, 11:38–12:26 on the 13th.

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

  3. 03

    Rule

    Aṣṭamī must be present during madhyāhna. It covers 48 of 48 minutes on the 12th and 48 of 48 on the 13th.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104

  4. 04

    Tie-break

    Both middays qualify and the rule marks neither. The one covered longer is ruled, as a boundary.

    priority: unstated → greater-coverage · margin 2335 s

  5. 05

    Ruling

    Gopāṣṭamī, Baoding, 1983: Saturday 12 November.

    confidence: boundary (tie-break-unstated)

Say it like this

In Baoding, Gopāṣṭamī 1983 falls on Saturday 12 November. Aṣṭamī runs from 10:34 on Sat 12 Nov to 13:05 on Sun 13 Nov and covers all of madhyāhna that midday. It also reaches the next midday for 48 minutes; the rule does not say which to take, and the one covered longer is ruled: treat the date as contested.

ahargana.org/baoding/festivals/1983/gopashtami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 12 Nov
Ahargaṇa, classicalDisc centre, no refractionSat 12 Nov
compat-drikpanchangComparison profileSat 12 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 12thCoveredMadhyāhna 13thCoveredRuled
Los Angeles18:34 → 21:0511:1348 min11:130 min12 Nov
Chicago20:34 → 23:0511:1148 min11:110 min12 Nov
Jersey City21:34 → 00:0511:1648 min11:160 min12 Nov
Port of Spain22:34 → 01:0511:2648 min11:260 min12 Nov
London02:34 → 05:0511:2048 min11:200 min12 Nov
Durban04:34 → 07:0511:1648 min11:160 min12 Nov
Dubai06:34 → 09:0511:3948 min11:390 min12 Nov
Delhi08:04 → 10:3511:4148 min11:410 min12 Nov
Kolkata08:04 → 10:3510:5748 min10:570 min12 Nov
Singapore10:34 → 13:0512:2548 min12:2540 min12 Nov
Sydney13:34 → 16:0512:150 min12:1648 min13 Nov
Suva14:34 → 17:0511:260 min11:2748 min13 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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