Ruling · Ahoyī Aṣṭamī (Ahoi Ashtami) · 2011

Wednesday 19 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 19 October

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

22:47 moonrise
Aṣṭamī begins 23:29:28
21:3521:5922:2322:4723:1123:3523:59

Absent at moonrise

Moonrise of Thursday 20 October

Aṣṭamī does not hold at moonrise. Not taken.

23:51 moonrise
Aṣṭamī ends 23:19:18
22:3923:0323:2723:5100:1500:3901:03

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 23:29 on Wed 19 Oct to 23:19 on Thu 20 Oct.

    2011-10-19T15:29:28Z → 2011-10-20T15:19:18Z

  2. 02

    Kāla

    Moonrise is at 22:47 on the 19th and 23:51 on the 20th.

    moonrise: disc centre, 31′

  3. 03

    Rule

    Aṣṭamī must be current at moonrise. It is not on the 19th and is not on the 20th.

    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 1917 s

  5. 05

    Ruling

    Ahoyī Aṣṭamī, Baoding, 2011: Wednesday 19 October.

    confidence: boundary (absent-unstated)

Say it like this

In Baoding, Ahoyī Aṣṭamī (Ahoi Ashtami) 2011 falls on Wednesday 19 October. Aṣṭamī runs from 23:29 on Wed 19 Oct to 23:19 on Thu 20 Oct, and is current at moonrise on neither day.

ahargana.org/baoding/festivals/2011/ahoyi-ashtami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 19 Oct
Ahargaṇa, classicalDisc centre, no refractionWed 19 Oct
compat-drikpanchangComparison profileWed 19 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 19thCoveredMoonrise 20thCoveredRuled
Los Angeles08:29 → 08:1900:13holds01:16no19 Oct
Chicago10:29 → 10:1923:49holds00:56no19 Oct
Jersey City11:29 → 11:1923:55holds01:01no19 Oct
Port of Spain11:29 → 11:1923:53holds00:47no19 Oct
London16:29 → 16:1923:13holds00:26no19 Oct
Durban17:29 → 17:1900:29holds01:10no19 Oct
Dubai19:29 → 19:1923:26holds00:24no19 Oct
Delhi20:59 → 20:4923:18holds00:18no19 Oct
Kolkata20:59 → 20:4922:43holds23:40no19 Oct
Singapore23:29 → 23:1900:40holds01:32no19 Oct
Sydney02:29 → 02:1901:22no02:03holds20 Oct
Suva03:29 → 03:1900:01no00:47holds20 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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