Ruling · Mahāṣṭamī (Durga Ashtami) · 2074

Friday 28 September

Determinatein Daqing, under the Rashtriya Panchang method. Clear of every threshold by 74 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 Thursday 27 September

Aṣṭamī is absent from madhyāhna. Not taken.

madhyāhna begins 11:07  11:55 madhyāhna ends
10:1910:4311:0711:3111:5512:1912:43

0 of 48 minutes covered

Midday of Friday 28 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 14:58 on Thu 27 Sep to 13:08 on Fri 28 Sep.

    2074-09-27T06:58:16Z → 2074-09-28T05:08:21Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:07–11:55 on the 27th, 11:06–11:54 on the 28th.

    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 27th and 48 of 48 on the 28th.

    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 4435 s

  5. 05

    Ruling

    Mahāṣṭamī, Daqing, 2074: Friday 28 September.

    confidence: determinate

Say it like this

In Daqing, Mahāṣṭamī (Durga Ashtami) 2074 falls on Friday 28 September. Aṣṭamī runs from 14:58 on Thu 27 Sep to 13:08 on Fri 28 Sep and covers all of madhyāhna that midday.

ahargana.org/daqing/festivals/2074/mahashtami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingFri 28 Sep
Ahargaṇa, classicalDisc centre, no refractionFri 28 Sep
compat-drikpanchangComparison profileFri 28 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 27thCoveredMadhyāhna 28thCoveredRuled
Los Angeles23:58 → 22:0812:2048 min12:190 min27 Sep
Chicago01:58 → 00:0812:1748 min12:170 min27 Sep
Jersey City02:58 → 01:0812:2348 min12:230 min27 Sep
Port of Spain02:58 → 01:0811:3348 min11:330 min27 Sep
London07:58 → 06:0812:2748 min12:270 min27 Sep
Durban08:58 → 07:0811:2348 min11:230 min27 Sep
Dubai10:58 → 09:0811:4648 min11:450 min27 Sep
Delhi12:28 → 10:3811:488 min11:480 min27 Sep
Kolkata12:28 → 10:3811:040 min11:030 min28 Sep
Singapore14:58 → 13:0812:320 min12:3137 min28 Sep
Sydney16:58 → 15:0811:230 min11:2248 min28 Sep
Suva18:58 → 17:0811:340 min11:3348 min28 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

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