Ruling · Mahāṣṭamī (Durga Ashtami) · 2095

Friday 7 October

Boundaryin Daqing, under the Rashtriya Panchang method. A threshold is only 2 min 00 s away. Say “contested”.

Decide it for

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

The two middays

One ghaṭī is 24 minutes. Madhyāhna is 1 ghaṭikā either side of midday.

Midday of Thursday 6 October

Qualifies with 10 of 48 minutes. Not taken.

madhyāhna begins 11:04  11:52 madhyāhna ends
Aṣṭamī begins 11:41:42
10:1610:4011:0411:2811:5212:1612:40

10 of 48 minutes covered, the last 10

Midday of Friday 7 October

Taken. Both middays qualify; the rule takes the second.

madhyāhna begins 11:04  11:52 madhyāhna ends
Aṣṭamī ends 11:53:48
10:1610:4011:0411:2811:5212:1612:40

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 11:42 on Thu 6 Oct to 11:54 on Fri 7 Oct.

    2095-10-06T03:41:43Z → 2095-10-07T03:53:48Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:04–11:52 on the 6th, 11:04–11:52 on the 7th.

    madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′

  3. 03

    Rule

    Aṣṭamī must be present during madhyāhna. It covers 10 of 48 minutes on the 6th and 48 of 48 on the 7th.

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

  4. 04

    Tie-break

    Both middays qualify. Paraviddhā: the second is taken.

    priority: paraviddha → paraviddha · margin 120 s < 300 s

  5. 05

    Ruling

    Mahāṣṭamī, Daqing, 2095: Friday 7 October.

    confidence: boundary (margin)

Say it like this

In Daqing, Mahāṣṭamī (Durga Ashtami) 2095 falls on Friday 7 October. Aṣṭamī runs from 11:42 on Thu 6 Oct to 11:54 on Fri 7 Oct and covers all of madhyāhna that midday. It also reaches the previous midday for 10 minutes; by the rule the second midday is taken. It is 2 min 00 s from a threshold: treat the date as contested.

ahargana.org/daqing/festivals/2095/mahashtami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingFri 7 Oct
Ahargaṇa, classicalDisc centre, no refractionFri 7 Oct
compat-drikpanchangComparison profileFri 7 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/mahashtami · ruleset 2026.3-draft

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

“S 8 Mahastami (paraviddha)” Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104.

The same rule, elsewhere

Twelve places, west to east. Local clock times.

PlaceAṣṭamīMadhyāhna 6thCoveredMadhyāhna 7thCoveredRuled
Los Angeles20:42 → 20:5412:1748 min12:170 min6 Oct
Chicago22:42 → 22:5412:1548 min12:140 min6 Oct
Jersey City23:42 → 23:5412:2048 min12:200 min6 Oct
Port of Spain23:42 → 23:5411:3048 min11:300 min6 Oct
London04:42 → 04:5412:2448 min12:240 min6 Oct
Durban05:42 → 05:5411:2148 min11:200 min6 Oct
Dubai07:42 → 07:5411:4348 min11:430 min6 Oct
Delhi09:12 → 09:2411:4548 min11:450 min6 Oct
Kolkata09:12 → 09:2411:0148 min11:010 min6 Oct
Singapore11:42 → 11:5412:2948 min12:290 min6 Oct
Sydney14:42 → 14:5412:200 min12:2048 min7 Oct
Suva15:42 → 15:5411:310 min11:3148 min7 Oct
Profile · tradition
pac-rp@2026.1 · smarta
Rule
mahashtami@2026.3-draft
Engine · kernel
0.1.0 · de440 7eef…ea74
Boundary margin
300 s

About Ahargaṇa