Ruling · Mahāṣṭamī (Durga Ashtami) · 2082

Tuesday 29 September

Determinatein Daqing, under the Rashtriya Panchang method. Clear of every threshold by 497 minutes.

Decide it for

DaqingDelhiKolkataSingaporeSydneyJersey City

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 Monday 28 September

Aṣṭamī is absent from madhyāhna. Not taken.

madhyāhna begins 11:06  11:54 madhyāhna ends
10:1810:4211:0611:3011:5412:1812:42

0 of 48 minutes covered

Midday of Tuesday 29 September

Taken. The only midday Aṣṭamī reaches.

madhyāhna begins 11:06  11:54 madhyāhna ends
10:1810:4211:0611:3011:5412:1812:42

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 21:11 on Mon 28 Sep to 20:11 on Tue 29 Sep.

    2082-09-28T13:11:03Z → 2082-09-29T12:11:29Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:06–11:54 on the 28th, 11:06–11:54 on the 29th.

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

  3. 03

    Rule

    Aṣṭamī must be present during madhyāhna. It covers 0 of 48 minutes on the 28th and 48 of 48 on the 29th.

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

  4. 04

    Tie-break

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

    priority: paraviddha → only-day · margin 29840 s

  5. 05

    Ruling

    Mahāṣṭamī, Daqing, 2082: Tuesday 29 September.

    confidence: determinate

Say it like this

In Daqing, Mahāṣṭamī (Durga Ashtami) 2082 falls on Tuesday 29 September. Aṣṭamī runs from 21:11 on Mon 28 Sep to 20:11 on Tue 29 Sep and covers all of madhyāhna that midday.

ahargana.org/daqing/festivals/2082/mahashtami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 29 Sep
Ahargaṇa, classicalDisc centre, no refractionTue 29 Sep
compat-drikpanchangComparison profileTue 29 Sep
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 28thCoveredMadhyāhna 29thCoveredRuled
Los Angeles06:11 → 05:1112:1948 min12:190 min28 Sep
Chicago08:11 → 07:1112:1748 min12:170 min28 Sep
Jersey City09:11 → 08:1112:2348 min12:220 min28 Sep
Port of Spain09:11 → 08:1111:3348 min11:320 min28 Sep
London14:11 → 13:1112:270 min12:2645 min29 Sep
Durban15:11 → 14:1111:230 min11:2348 min29 Sep
Dubai17:11 → 16:1111:450 min11:4548 min29 Sep
Delhi18:41 → 17:4111:480 min11:4748 min29 Sep
Kolkata18:41 → 17:4111:030 min11:0348 min29 Sep
Singapore21:11 → 20:1112:310 min12:3148 min29 Sep
Sydney23:11 → 22:1111:220 min11:2248 min29 Sep
Suva01:11 → 00:1111:330 min11:3348 min29 Sep
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