Ruling · Mahāṣṭamī (Durga Ashtami) · 1910

Tuesday 11 October

Determinatein Daqing, under the Rashtriya Panchang method. Clear of every threshold by 49 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 11 October

Taken. The only midday Aṣṭamī reaches.

madhyāhna begins 11:03  11:51 madhyāhna ends
10:1510:3911:0311:2711:5112:1512:39

48 of 48 minutes covered

Midday of Wednesday 12 October

Aṣṭamī is absent from madhyāhna. Not taken.

madhyāhna begins 11:02  11:50 madhyāhna ends
10:1410:3811:0211:2611:5012:1412:38

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 08:55 on Tue 11 Oct to 10:13 on Wed 12 Oct.

    1910-10-11T00:54:56Z → 1910-10-12T02:13:30Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:03–11:51 on the 11th, 11:02–11:50 on the 12th.

    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 11th and 0 of 48 on the 12th.

    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 2936 s

  5. 05

    Ruling

    Mahāṣṭamī, Daqing, 1910: Tuesday 11 October.

    confidence: determinate

Say it like this

In Daqing, Mahāṣṭamī (Durga Ashtami) 1910 falls on Tuesday 11 October. Aṣṭamī runs from 08:55 on Tue 11 Oct to 10:13 on Wed 12 Oct and covers all of madhyāhna that midday.

ahargana.org/daqing/festivals/1910/mahashtami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 11 Oct
Ahargaṇa, classicalDisc centre, no refractionTue 11 Oct
compat-drikpanchangComparison profileTue 11 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 11thCoveredMadhyāhna 12thCoveredRuled
Los Angeles16:55 → 18:1311:1648 min11:150 min11 Oct
Chicago18:55 → 20:1311:1348 min11:130 min11 Oct
Jersey City19:55 → 21:1311:1948 min11:190 min11 Oct
Port of Spain20:55 → 22:1311:2948 min11:290 min11 Oct
London00:55 → 02:1311:2348 min11:230 min11 Oct
Durban02:55 → 04:1311:1948 min11:190 min11 Oct
Dubai04:36 → 05:5411:2348 min11:220 min11 Oct
Delhi06:25 → 07:4311:4448 min11:440 min11 Oct
Kolkata06:25 → 07:4310:5948 min10:590 min11 Oct
Singapore07:55 → 09:1311:2848 min11:270 min11 Oct
Sydney10:55 → 12:1311:1948 min11:1848 min12 Oct
Suva12:50 → 14:0811:250 min11:2448 min12 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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