Ruling · Ahoyī Aṣṭamī (Ahoi Ashtami) · 1990

Wednesday 10 October

Boundaryin Baoding, under the Rashtriya Panchang method. Aṣṭamī reaches moonrise on neither day and the rule does not say what then. Say “contested”.

Decide it for

38°52′ N 115°28′ E · Asia/Shanghai · GeoNames 1816971

The two moonrises

One ghaṭī is 24 minutes. The moonrise is read as disc centre, 31′.

Moonrise of Wednesday 10 October

Taken. Aṣṭamī reaches neither moonrise; this is the day it falls on.

22:20 moonrise
21:0821:3221:5622:2022:4423:0823:32

Absent at moonrise

Moonrise of Thursday 11 October

Aṣṭamī does not hold at moonrise. Not taken.

23:31 moonrise
Aṣṭamī ends 22:46:35
22:1922:4323:0723:3123:5500:1900:43

Absent at moonrise

Aṣṭamī presentMoonrise, the instant the rule readsThe instant the tithi begins or ends

How it was decided

  1. 01

    Aṅga

    Aṣṭamī runs from 00:23 on Thu 11 Oct to 22:47 on Thu 11 Oct.

    1990-10-10T16:23:15Z → 1990-10-11T14:46:36Z

  2. 02

    Kāla

    Moonrise is at 22:20 on the 10th and 23:31 on the 11th.

    moonrise: disc centre, 31′

  3. 03

    Rule

    Aṣṭamī must be current at moonrise. It is not on the 10th and is not on the 11th.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104

  4. 04

    Tie-break

    Neither moonrise qualifies. The day the tithi falls on is taken.

    priority: paraviddha → tithi-day · margin 2645 s

  5. 05

    Ruling

    Ahoyī Aṣṭamī, Baoding, 1990: Wednesday 10 October.

    confidence: boundary (absent-unstated)

Say it like this

In Baoding, Ahoyī Aṣṭamī (Ahoi Ashtami) 1990 falls on Wednesday 10 October. Aṣṭamī runs from 00:23 on Thu 11 Oct to 22:47 on Thu 11 Oct, and is current at moonrise on neither day.

ahargana.org/baoding/festivals/1990/ahoyi-ashtami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 10 Oct
Ahargaṇa, classicalDisc centre, no refractionWed 10 Oct
compat-drikpanchangComparison profileWed 10 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/ahoyi-ashtami · ruleset 2026.3-draft

Month
Āśvina, amānta
Pakṣa · aṅga
Kṛṣṇa · Aṣṭamī
Kāla
Moonrise
Priority
Paraviddhā
Tie-break
Second day
Reference
CRC 1955, p. 104

“K 8 Ahoyi astami (Gujerat) (current at moonrise), Karastami (Maharashtra). If occurs on two successive days, it is to be observed on the second day.” Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104.

The same rule, elsewhere

Twelve places, west to east. Local clock times.

PlaceAṣṭamīMoonrise 10thCoveredMoonrise 11thCoveredRuled
Los Angeles09:23 → 07:4723:55holds01:02no10 Oct
Chicago11:23 → 09:4723:22holds00:35no10 Oct
Jersey City12:23 → 10:4723:29holds00:41no10 Oct
Port of Spain12:23 → 10:4723:49holds00:48no10 Oct
London17:23 → 15:4722:30holds23:51no10 Oct
Durban18:23 → 16:4700:46holds01:32no10 Oct
Dubai20:23 → 18:4723:11holds00:16no10 Oct
Delhi21:53 → 20:1723:00holds00:06no10 Oct
Kolkata21:53 → 20:1722:29holds23:32no10 Oct
Singapore00:23 → 22:4700:38holds01:35no10 Oct
Sydney02:23 → 00:4700:40no01:27no10 Oct
Suva04:23 → 02:4700:07no01:00holds11 Oct
Profile · tradition
pac-rp@2026.1 · smarta
Rule
ahoyi-ashtami@2026.3-draft
Engine · kernel
0.1.0 · de440 7eef…ea74
Boundary margin
300 s

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