Ruling · Mahāṣṭamī (Durga Ashtami) · 1940

Tuesday 8 October

Determinatein Daqing, under the Rashtriya Panchang method. Clear of every threshold by 517 minutes.

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 Tuesday 8 October

Taken. The only midday Aṣṭamī reaches.

madhyāhna begins 12:03  12:51 madhyāhna ends
11:1511:3912:0312:2712:5113:1513:39

48 of 48 minutes covered

Midday of Wednesday 9 October

Aṣṭamī is absent from madhyāhna. Not taken.

madhyāhna begins 12:03  12:51 madhyāhna ends
11:1511:3912:0312:2712:5113:1513:39

0 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 03:26 on Tue 8 Oct to 03:21 on Wed 9 Oct.

    1940-10-07T18:26:27Z → 1940-10-08T18:21:09Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 12:03–12:51 on the 8th, 12:03–12:51 on the 9th.

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

  3. 03

    Rule

    Aṣṭamī must be present during madhyāhna. It covers 48 of 48 minutes on the 8th and 0 of 48 on the 9th.

    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 31010 s

  5. 05

    Ruling

    Mahāṣṭamī, Daqing, 1940: Tuesday 8 October.

    confidence: determinate

Say it like this

In Daqing, Mahāṣṭamī (Durga Ashtami) 1940 falls on Tuesday 8 October. Aṣṭamī runs from 03:26 on Tue 8 Oct to 03:21 on Wed 9 Oct and covers all of madhyāhna that midday.

ahargana.org/daqing/festivals/1940/mahashtami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 8 Oct
Ahargaṇa, classicalDisc centre, no refractionTue 8 Oct
compat-drikpanchangComparison profileTue 8 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 7thCoveredMadhyāhna 8thCoveredRuled
Los Angeles10:26 → 10:2111:1648 min11:160 min7 Oct
Chicago12:26 → 12:2111:140 min11:1448 min8 Oct
Jersey City13:26 → 13:2111:200 min11:2048 min8 Oct
Port of Spain14:26 → 14:2111:300 min11:3048 min8 Oct
London19:26 → 19:2112:240 min12:2448 min8 Oct
Durban20:26 → 20:2111:200 min11:2048 min8 Oct
Dubai22:26 → 22:2111:420 min11:4248 min8 Oct
Delhi23:56 → 23:5111:450 min11:4548 min8 Oct
Kolkata23:56 → 23:5111:000 min11:0048 min8 Oct
Singapore01:46 → 01:4111:490 min11:4848 min8 Oct
Sydney04:26 → 04:2111:190 min11:1948 min8 Oct
Suva06:26 → 06:2111:300 min11:3048 min8 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

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