Ruling · Mahāṣṭamī (Durga Ashtami) · 1954

Tuesday 5 October

Determinatein Daqing, under the Rashtriya Panchang method. Clear of every threshold by 540 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 5 October

Taken. The only midday Aṣṭamī reaches.

madhyāhna begins 11:04  11:52 madhyāhna ends
10:1610:4011:0411:2811:5212:1612:40

48 of 48 minutes covered

Midday of Wednesday 6 October

Aṣṭamī is absent from madhyāhna. Not taken.

madhyāhna begins 11:04  11:52 madhyāhna ends
10:1610:4011:0411:2811:5212:1612:40

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 00:47 on Tue 5 Oct to 02:04 on Wed 6 Oct.

    1954-10-04T16:46:55Z → 1954-10-05T18:03:50Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:04–11:52 on the 5th, 11:04–11:52 on the 6th.

    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 5th and 0 of 48 on the 6th.

    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 32409 s

  5. 05

    Ruling

    Mahāṣṭamī, Daqing, 1954: Tuesday 5 October.

    confidence: determinate

Say it like this

In Daqing, Mahāṣṭamī (Durga Ashtami) 1954 falls on Tuesday 5 October. Aṣṭamī runs from 00:47 on Tue 5 Oct to 02:04 on Wed 6 Oct and covers all of madhyāhna that midday.

ahargana.org/daqing/festivals/1954/mahashtami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 5 Oct
Ahargaṇa, classicalDisc centre, no refractionTue 5 Oct
compat-drikpanchangComparison profileTue 5 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 4thCoveredMadhyāhna 5thCoveredRuled
Los Angeles08:47 → 10:0411:1748 min11:170 min4 Oct
Chicago10:47 → 12:0411:1548 min11:1548 min5 Oct
Jersey City11:47 → 13:0411:2122 min11:2048 min5 Oct
Port of Spain12:47 → 14:0411:310 min11:3148 min5 Oct
London16:47 → 18:0411:250 min11:2548 min5 Oct
Durban18:47 → 20:0411:210 min11:2148 min5 Oct
Dubai20:47 → 22:0411:440 min11:4348 min5 Oct
Delhi22:17 → 23:3411:460 min11:4648 min5 Oct
Kolkata22:17 → 23:3411:010 min11:0148 min5 Oct
Singapore00:17 → 01:3412:000 min11:5948 min5 Oct
Sydney02:47 → 04:0411:200 min11:2048 min5 Oct
Suva04:47 → 06:0411:310 min11:3148 min5 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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