Ruling · Gopāṣṭamī (Goṣṭhāṣṭamī) · 2072

Thursday 17 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 Thursday 17 November

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

madhyāhna begins 11:39  12:27 madhyāhna ends
Aṣṭamī begins 10:52:40
10:5111:1511:3912:0312:2712:5113:15

48 of 48 minutes covered

Midday of Friday 18 November

Qualifies with 48 of 48 minutes. Not taken.

madhyāhna begins 11:39  12:27 madhyāhna ends
10:5111:1511:3912:0312:2712:5113:15

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 10:53 on Thu 17 Nov to 13:21 on Fri 18 Nov.

    2072-11-17T02:52:41Z → 2072-11-18T05:21:25Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:39–12:27 on the 17th, 11:39–12:27 on the 18th.

    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 17th and 48 of 48 on the 18th.

    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 2787 s

  5. 05

    Ruling

    Gopāṣṭamī, Baoding, 2072: Thursday 17 November.

    confidence: boundary (tie-break-unstated)

Say it like this

In Baoding, Gopāṣṭamī 2072 falls on Thursday 17 November. Aṣṭamī runs from 10:53 on Thu 17 Nov to 13:21 on Fri 18 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/2072/gopashtami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 17 Nov
Ahargaṇa, classicalDisc centre, no refractionThu 17 Nov
compat-drikpanchangComparison profileThu 17 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 17thCoveredMadhyāhna 18thCoveredRuled
Los Angeles18:53 → 21:2111:1448 min11:140 min17 Nov
Chicago20:53 → 23:2111:1248 min11:120 min17 Nov
Jersey City21:53 → 00:2111:1748 min11:180 min17 Nov
Port of Spain22:53 → 01:2111:2748 min11:280 min17 Nov
London02:53 → 05:2111:2148 min11:220 min17 Nov
Durban04:53 → 07:2111:1748 min11:170 min17 Nov
Dubai06:53 → 09:2111:4048 min11:400 min17 Nov
Delhi08:23 → 10:5111:4248 min11:420 min17 Nov
Kolkata08:23 → 10:5110:5848 min10:580 min17 Nov
Singapore10:53 → 13:2112:2648 min12:2648 min17 Nov
Sydney13:53 → 16:2112:170 min12:1748 min18 Nov
Suva14:53 → 17:2111:280 min11:2848 min18 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

About Ahargaṇa