Ruling · Mahāṣṭamī (Durga Ashtami) · 1928

Monday 22 October

Determinatein Daqing, under the Rashtriya Panchang method. Clear of every threshold by 269 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 Sunday 21 October

Aṣṭamī is absent from madhyāhna. Not taken.

madhyāhna begins 11:00  11:48 madhyāhna ends
10:1210:3611:0011:2411:4812:1212:36

0 of 48 minutes covered

Midday of Monday 22 October

Taken. The only midday Aṣṭamī reaches.

madhyāhna begins 11:00  11:48 madhyāhna ends
10:1210:3611:0011:2411:4812:1212:36

48 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 16:18 on Sun 21 Oct to 17:44 on Mon 22 Oct.

    1928-10-21T08:17:46Z → 1928-10-22T09:43:42Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:00–11:48 on the 21st, 11:00–11:48 on the 22nd.

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

  3. 03

    Rule

    Aṣṭamī must be present during madhyāhna. It covers 0 of 48 minutes on the 21st and 48 of 48 on the 22nd.

    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 16161 s

  5. 05

    Ruling

    Mahāṣṭamī, Daqing, 1928: Monday 22 October.

    confidence: determinate

Say it like this

In Daqing, Mahāṣṭamī (Durga Ashtami) 1928 falls on Monday 22 October. Aṣṭamī runs from 16:18 on Sun 21 Oct to 17:44 on Mon 22 Oct and covers all of madhyāhna that midday.

ahargana.org/daqing/festivals/1928/mahashtami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingMon 22 Oct
Ahargaṇa, classicalDisc centre, no refractionMon 22 Oct
compat-drikpanchangComparison profileMon 22 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 21stCoveredMadhyāhna 22ndCoveredRuled
Los Angeles00:18 → 01:4411:1348 min11:130 min21 Oct
Chicago02:18 → 03:4411:1148 min11:110 min21 Oct
Jersey City03:18 → 04:4411:1748 min11:170 min21 Oct
Port of Spain04:18 → 05:4411:2748 min11:270 min21 Oct
London08:18 → 09:4411:2148 min11:210 min21 Oct
Durban10:18 → 11:4411:1748 min11:1727 min22 Oct
Dubai12:18 → 13:4411:3910 min11:3948 min22 Oct
Delhi13:48 → 15:1411:420 min11:4148 min22 Oct
Kolkata13:48 → 15:1410:570 min10:5748 min22 Oct
Singapore15:18 → 16:4411:250 min11:2548 min22 Oct
Sydney18:18 → 19:4411:160 min11:1648 min22 Oct
Suva20:18 → 21:4411:270 min11:2748 min22 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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