Ruling · Mahāṣṭamī (Durga Ashtami) · 1950

Wednesday 18 October

Determinatein Daqing, under the Rashtriya Panchang method. Clear of every threshold by 596 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 Wednesday 18 October

Taken. The only midday Aṣṭamī reaches.

madhyāhna begins 11:01  11:49 madhyāhna ends
10:1310:3711:0111:2511:4912:1312:37

48 of 48 minutes covered

Midday of Thursday 19 October

Aṣṭamī is absent from madhyāhna. Not taken.

madhyāhna begins 11:01  11:49 madhyāhna ends
10:1310:3711:0111:2511:4912:1312:37

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 01:05 on Wed 18 Oct to 23:40 on Wed 18 Oct.

    1950-10-17T17:04:34Z → 1950-10-18T15:39:58Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:01–11:49 on the 18th, 11:01–11:49 on the 19th.

    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 18th and 0 of 48 on the 19th.

    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 35786 s

  5. 05

    Ruling

    Mahāṣṭamī, Daqing, 1950: Wednesday 18 October.

    confidence: determinate

Say it like this

In Daqing, Mahāṣṭamī (Durga Ashtami) 1950 falls on Wednesday 18 October. Aṣṭamī runs from 01:05 on Wed 18 Oct to 23:40 on Wed 18 Oct and covers all of madhyāhna that midday.

ahargana.org/daqing/festivals/1950/mahashtami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 18 Oct
Ahargaṇa, classicalDisc centre, no refractionWed 18 Oct
compat-drikpanchangComparison profileWed 18 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 17thCoveredMadhyāhna 18thCoveredRuled
Los Angeles09:05 → 07:4011:1448 min11:140 min17 Oct
Chicago11:05 → 09:4011:1248 min11:120 min17 Oct
Jersey City12:05 → 10:4011:171 min11:170 min17 Oct
Port of Spain13:05 → 11:4011:270 min11:2713 min18 Oct
London18:05 → 16:4012:220 min12:2148 min18 Oct
Durban19:05 → 17:4011:180 min11:1748 min18 Oct
Dubai21:05 → 19:4011:400 min11:4048 min18 Oct
Delhi22:35 → 21:1011:420 min11:4248 min18 Oct
Kolkata22:35 → 21:1010:580 min10:5848 min18 Oct
Singapore00:35 → 23:1011:560 min11:5648 min18 Oct
Sydney03:05 → 01:4011:170 min11:1748 min18 Oct
Suva05:05 → 03:4011:280 min11:2848 min18 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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