Ruling · Gopāṣṭamī (Goṣṭhāṣṭamī) · 1987

Friday 30 October

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 19 minutes.

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 Thursday 29 October

Aṣṭamī is absent from madhyāhna. Not taken.

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

0 of 48 minutes covered

Midday of Friday 30 October

Taken. The only midday Aṣṭamī reaches.

madhyāhna begins 11:38  12:26 madhyāhna ends
Aṣṭamī ends 12:06:26
10:5011:1411:3812:0212:2612:5013:14

29 of 48 minutes covered, the first 29

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

How it was decided

  1. 01

    Aṅga

    Aṣṭamī runs from 14:14 on Thu 29 Oct to 12:06 on Fri 30 Oct.

    1987-10-29T06:14:25Z → 1987-10-30T04:06:26Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:38–12:26 on the 29th, 11:38–12:26 on the 30th.

    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 29th and 29 of 48 on the 30th.

    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 1151 s

  5. 05

    Ruling

    Gopāṣṭamī, Baoding, 1987: Friday 30 October.

    confidence: determinate

Say it like this

In Baoding, Gopāṣṭamī 1987 falls on Friday 30 October. Aṣṭamī runs from 14:14 on Thu 29 Oct to 12:06 on Fri 30 Oct and covers 29 of 48 minutes of madhyāhna that midday.

ahargana.org/baoding/festivals/1987/gopashtami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingFri 30 Oct
Ahargaṇa, classicalDisc centre, no refractionFri 30 Oct
compat-drikpanchangComparison profileFri 30 Oct
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 29thCoveredMadhyāhna 30thCoveredRuled
Los Angeles22:14 → 20:0611:1348 min11:120 min29 Oct
Chicago00:14 → 22:0611:1048 min11:100 min29 Oct
Jersey City01:14 → 23:0611:1648 min11:160 min29 Oct
Port of Spain02:14 → 00:0611:2648 min11:260 min29 Oct
London06:14 → 04:0611:2048 min11:200 min29 Oct
Durban08:14 → 06:0611:1648 min11:160 min29 Oct
Dubai10:14 → 08:0611:3848 min11:380 min29 Oct
Delhi11:44 → 09:3611:4144 min11:410 min29 Oct
Kolkata11:44 → 09:3610:560 min10:560 min30 Oct
Singapore14:14 → 12:0612:240 min12:240 min30 Oct
Sydney17:14 → 15:0612:150 min12:1548 min30 Oct
Suva18:14 → 16:0611:260 min11:2648 min30 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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