Ruling · Ahoyī Aṣṭamī (Ahoi Ashtami) · 1973

Thursday 18 October

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 201 minutes.

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 Thursday 18 October

Taken. The only moonrise Aṣṭamī holds at.

22:54 moonrise
21:4222:0622:3022:5423:1823:4200:06

Holds at moonrise

Moonrise of Friday 19 October

Aṣṭamī does not hold at moonrise. Not taken.

00:04 moonrise
22:5223:1623:4000:0400:2800:5201:16

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 19:32 on Thu 18 Oct to 17:36 on Fri 19 Oct.

    1973-10-18T11:32:28Z → 1973-10-19T09:35:42Z

  2. 02

    Kāla

    Moonrise is at 22:54 on the 18th and 00:04 on the 19th.

    moonrise: disc centre, 31′

  3. 03

    Rule

    Aṣṭamī must be current at moonrise. It is on the 18th and is not on the 19th.

    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 12076 s

  5. 05

    Ruling

    Ahoyī Aṣṭamī, Baoding, 1973: Thursday 18 October.

    confidence: determinate

Say it like this

In Baoding, Ahoyī Aṣṭamī (Ahoi Ashtami) 1973 falls on Thursday 18 October. Aṣṭamī runs from 19:32 on Thu 18 Oct to 17:36 on Fri 19 Oct and is current at moonrise that day.

ahargana.org/baoding/festivals/1973/ahoyi-ashtami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 18 Oct
Ahargaṇa, classicalDisc centre, no refractionThu 18 Oct
compat-drikpanchangComparison profileThu 18 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 18thCoveredMoonrise 19thCoveredRuled
Los Angeles04:32 → 02:3600:24holds01:31no18 Oct
Chicago06:32 → 04:3623:59holds01:11no18 Oct
Jersey City07:32 → 05:3600:05holds01:16no18 Oct
Port of Spain07:32 → 05:3600:05holds01:02no18 Oct
London12:32 → 10:3623:20holds00:40no18 Oct
Durban13:32 → 11:3600:43holds01:25no18 Oct
Dubai15:32 → 13:3623:35holds00:38no18 Oct
Delhi17:02 → 15:0623:27holds00:32no18 Oct
Kolkata17:02 → 15:0622:52holds23:54no18 Oct
Singapore19:02 → 17:0600:21holds01:16no18 Oct
Sydney21:32 → 19:3600:35holds01:18no18 Oct
Suva23:32 → 21:3600:12holds01:01no18 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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