Ruling · Mahāṣṭamī (Durga Ashtami) · 1916

Wednesday 4 October

Determinatein Daqing, under the Rashtriya Panchang method. Clear of every threshold by 186 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 Wednesday 4 October

Taken. The only midday Aṣṭamī reaches.

madhyāhna begins 11:05  11:53 madhyāhna ends
10:1710:4111:0511:2911:5312:1712:41

48 of 48 minutes covered

Midday of Thursday 5 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 07:59 on Wed 4 Oct to 05:59 on Thu 5 Oct.

    1916-10-03T23:58:40Z → 1916-10-04T21:59:27Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:05–11:53 on the 4th, 11:04–11:52 on the 5th.

    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 4th and 0 of 48 on the 5th.

    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 11151 s

  5. 05

    Ruling

    Mahāṣṭamī, Daqing, 1916: Wednesday 4 October.

    confidence: determinate

Say it like this

In Daqing, Mahāṣṭamī (Durga Ashtami) 1916 falls on Wednesday 4 October. Aṣṭamī runs from 07:59 on Wed 4 Oct to 05:59 on Thu 5 Oct and covers all of madhyāhna that midday.

ahargana.org/daqing/festivals/1916/mahashtami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 4 Oct
Ahargaṇa, classicalDisc centre, no refractionWed 4 Oct
compat-drikpanchangComparison profileWed 4 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 3rdCoveredMadhyāhna 4thCoveredRuled
Los Angeles15:59 → 13:5911:180 min11:1748 min4 Oct
Chicago17:59 → 15:5911:150 min11:1548 min4 Oct
Jersey City18:59 → 16:5911:210 min11:2148 min4 Oct
Port of Spain19:59 → 17:5911:310 min11:3148 min4 Oct
London23:59 → 21:5911:250 min11:2548 min4 Oct
Durban01:59 → 23:5911:210 min11:2148 min4 Oct
Dubai03:40 → 01:4011:250 min11:2448 min4 Oct
Delhi05:29 → 03:2911:460 min11:4648 min4 Oct
Kolkata05:29 → 03:2911:020 min11:0148 min4 Oct
Singapore06:59 → 04:5911:300 min11:2948 min4 Oct
Sydney09:59 → 07:5911:210 min11:2048 min4 Oct
Suva11:59 → 09:5911:320 min11:3121 min4 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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