Ruling · Gopāṣṭamī (Goṣṭhāṣṭamī) · 2071

Saturday 31 October

Determinatein Daqing, under the Rashtriya Panchang method. Clear of every threshold by 424 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 Friday 30 October

Aṣṭamī is absent from madhyāhna. Not taken.

madhyāhna begins 10:59  11:47 madhyāhna ends
10:1110:3510:5911:2311:4712:1112:35

0 of 48 minutes covered

Midday of Saturday 31 October

Taken. The only midday Aṣṭamī reaches.

madhyāhna begins 10:59  11:47 madhyāhna ends
10:1110:3510:5911:2311:4712:1112:35

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 18:51 on Fri 30 Oct to 21:25 on Sat 31 Oct.

    2071-10-30T10:51:04Z → 2071-10-31T13:24:34Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 10:59–11:47 on the 30th, 10:59–11:47 on the 31st.

    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 30th and 48 of 48 on the 31st.

    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 25414 s

  5. 05

    Ruling

    Gopāṣṭamī, Daqing, 2071: Saturday 31 October.

    confidence: determinate

Say it like this

In Daqing, Gopāṣṭamī 2071 falls on Saturday 31 October. Aṣṭamī runs from 18:51 on Fri 30 Oct to 21:25 on Sat 31 Oct and covers all of madhyāhna that midday.

ahargana.org/daqing/festivals/2071/gopashtami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 31 Oct
Ahargaṇa, classicalDisc centre, no refractionSat 31 Oct
compat-drikpanchangComparison profileSat 31 Oct
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 30thCoveredMadhyāhna 31stCoveredRuled
Los Angeles03:51 → 06:2512:1348 min12:130 min30 Oct
Chicago05:51 → 08:2512:1048 min12:100 min30 Oct
Jersey City06:51 → 09:2512:1648 min12:160 min30 Oct
Port of Spain06:51 → 09:2511:2648 min11:260 min30 Oct
London10:51 → 13:2511:2048 min11:2048 min30 Oct
Durban12:51 → 15:2511:160 min11:1648 min31 Oct
Dubai14:51 → 17:2511:380 min11:3848 min31 Oct
Delhi16:21 → 18:5511:410 min11:4148 min31 Oct
Kolkata16:21 → 18:5510:560 min10:5648 min31 Oct
Singapore18:51 → 21:2512:240 min12:2448 min31 Oct
Sydney21:51 → 00:2512:150 min12:1548 min31 Oct
Suva22:51 → 01:2511:260 min11:2648 min31 Oct
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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