Ruling · Ahoyī Aṣṭamī · 2011

Thursday 20 October

Determinatein Daqing, under the Rashtriya Panchang method. Clear of every threshold by 25 minutes.

Decide it for

46°35′ N 125°00′ E · Asia/Shanghai · GeoNames 2037860

The two moonrises

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

Moonrise of Wednesday 19 October

Aṣṭamī does not hold at moonrise. Not taken.

21:46 moonrise
20:3420:5821:2221:4622:1022:3422:58

Absent at moonrise

Moonrise of Thursday 20 October

Taken. The only moonrise Aṣṭamī holds at.

22:54 moonrise
Aṣṭamī ends 23:19:18
21:4222:0622:3022:5423:1823:4200:06

Holds 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 21:46 on the 19th and 22:54 on the 20th.

    moonrise: disc centre, 31′

  3. 03

    Rule

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

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

  4. 04

    Tie-break

    Only one moonrise qualifies. No tie-break is needed.

    priority: paraviddha → only-day · margin 1516 s

  5. 05

    Ruling

    Ahoyī Aṣṭamī, Daqing, 2011: Thursday 20 October.

    confidence: determinate

Say it like this

In Daqing, Ahoyī Aṣṭamī 2011 falls on Thursday 20 October. Aṣṭamī runs from 23:29 on Wed 19 Oct to 23:19 on Thu 20 Oct and is current at moonrise that day.

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

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 20 Oct
Ahargaṇa, classicalDisc centre, no refractionThu 20 Oct
compat-drikpanchangComparison profileThu 20 Oct
No institution has a recorded ruling for Daqing.

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

About Ahargaṇa