Ruling · Gopāṣṭamī (Goṣṭhāṣṭamī) · 2029

Tuesday 13 November

Determinatein Daqing, under the Rashtriya Panchang method. Clear of every threshold by 518 minutes.

Decide it for

DaqingDelhiKolkataSingaporeSydneyJersey City

46°35′ N 125°00′ E · Asia/Shanghai · GeoNames 2037860

The two middays

One ghaṭī is 24 minutes. Madhyāhna is 1 ghaṭikā either side of midday.

Midday of Monday 12 November

Aṣṭamī is absent from madhyāhna. Not taken.

madhyāhna begins 11:00  11:48 madhyāhna ends
10:1210:3611:0011:2411:4812:1212:36

0 of 48 minutes covered

Midday of Tuesday 13 November

Taken. The only midday Aṣṭamī reaches.

madhyāhna begins 11:00  11:48 madhyāhna ends
10:1210:3611:0011:2411:4812:1212:36

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 20:26 on Mon 12 Nov to 20:56 on Tue 13 Nov.

    2029-11-12T12:25:55Z → 2029-11-13T12:55:35Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:00–11:48 on the 12th, 11:00–11:48 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 0 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

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

    priority: unstated → only-day · margin 31082 s

  5. 05

    Ruling

    Gopāṣṭamī, Daqing, 2029: Tuesday 13 November.

    confidence: determinate

Say it like this

In Daqing, Gopāṣṭamī 2029 falls on Tuesday 13 November. Aṣṭamī runs from 20:26 on Mon 12 Nov to 20:56 on Tue 13 Nov and covers all of madhyāhna that midday.

ahargana.org/daqing/festivals/2029/gopashtami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 13 Nov
Ahargaṇa, classicalDisc centre, no refractionTue 13 Nov
compat-drikpanchangComparison profileTue 13 Nov
No institution has a recorded ruling for Daqing.

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 Angeles04:26 → 04:5611:1348 min11:130 min12 Nov
Chicago06:26 → 06:5611:1148 min11:110 min12 Nov
Jersey City07:26 → 07:5611:1648 min11:160 min12 Nov
Port of Spain08:26 → 08:5611:2648 min11:260 min12 Nov
London12:26 → 12:5611:200 min11:2148 min13 Nov
Durban14:26 → 14:5611:160 min11:1648 min13 Nov
Dubai16:26 → 16:5611:390 min11:3948 min13 Nov
Delhi17:56 → 18:2611:410 min11:4148 min13 Nov
Kolkata17:56 → 18:2610:570 min10:5748 min13 Nov
Singapore20:26 → 20:5612:250 min12:2548 min13 Nov
Sydney23:26 → 23:5612:160 min12:1648 min13 Nov
Suva00:26 → 00:5611:270 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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