Ruling · Gopāṣṭamī (Goṣṭhāṣṭamī) · 2066

Tuesday 26 October

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 211 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 Monday 25 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 Tuesday 26 October

Taken. The only midday Aṣṭamī reaches.

madhyāhna begins 11:38  12:26 madhyāhna ends
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 17:53 on Mon 25 Oct to 15:57 on Tue 26 Oct.

    2066-10-25T09:52:44Z → 2066-10-26T07:56:58Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:38–12:26 on the 25th, 11:38–12:26 on the 26th.

    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 25th and 48 of 48 on the 26th.

    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 12660 s

  5. 05

    Ruling

    Gopāṣṭamī, Baoding, 2066: Tuesday 26 October.

    confidence: determinate

Say it like this

In Baoding, Gopāṣṭamī 2066 falls on Tuesday 26 October. Aṣṭamī runs from 17:53 on Mon 25 Oct to 15:57 on Tue 26 Oct and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/2066/gopashtami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 26 Oct
Ahargaṇa, classicalDisc centre, no refractionTue 26 Oct
compat-drikpanchangComparison profileTue 26 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 25thCoveredMadhyāhna 26thCoveredRuled
Los Angeles02:53 → 00:5712:1348 min12:130 min25 Oct
Chicago04:53 → 02:5712:1048 min12:100 min25 Oct
Jersey City05:53 → 03:5712:1648 min12:160 min25 Oct
Port of Spain05:53 → 03:5711:2648 min11:260 min25 Oct
London10:53 → 08:5712:2048 min12:200 min25 Oct
Durban11:53 → 09:5711:1612 min11:160 min25 Oct
Dubai13:53 → 11:5711:390 min11:3918 min26 Oct
Delhi15:23 → 13:2711:410 min11:4148 min26 Oct
Kolkata15:23 → 13:2710:570 min10:5648 min26 Oct
Singapore17:53 → 15:5712:250 min12:2548 min26 Oct
Sydney20:53 → 18:5712:160 min12:1648 min26 Oct
Suva21:53 → 19:5711:270 min11:2748 min26 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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