Ruling · Mahāṣṭamī (Durga Ashtami) · 1909

Friday 22 October

Determinatein Daqing, under the Rashtriya Panchang method. Clear of every threshold by 463 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 Friday 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

Midday of Saturday 23 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

Aṣṭamī presentMadhyāhna, the window the rule readsThe instant the tithi begins or ends

How it was decided

  1. 01

    Aṅga

    Aṣṭamī runs from 03:17 on Fri 22 Oct to 02:38 on Sat 23 Oct.

    1909-10-21T19:17:22Z → 1909-10-22T18:37:50Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:00–11:48 on the 22nd, 11:00–11:48 on the 23rd.

    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 22nd and 0 of 48 on the 23rd.

    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 27777 s

  5. 05

    Ruling

    Mahāṣṭamī, Daqing, 1909: Friday 22 October.

    confidence: determinate

Say it like this

In Daqing, Mahāṣṭamī (Durga Ashtami) 1909 falls on Friday 22 October. Aṣṭamī runs from 03:17 on Fri 22 Oct to 02:38 on Sat 23 Oct and covers all of madhyāhna that midday.

ahargana.org/daqing/festivals/1909/mahashtami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingFri 22 Oct
Ahargaṇa, classicalDisc centre, no refractionFri 22 Oct
compat-drikpanchangComparison profileFri 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 Angeles11:17 → 10:3811:1344 min11:130 min21 Oct
Chicago13:17 → 12:3811:110 min11:1148 min22 Oct
Jersey City14:17 → 13:3811:170 min11:1748 min22 Oct
Port of Spain15:17 → 14:3811:270 min11:2748 min22 Oct
London19:17 → 18:3811:210 min11:2148 min22 Oct
Durban21:17 → 20:3811:170 min11:1748 min22 Oct
Dubai22:58 → 22:1911:200 min11:2048 min22 Oct
Delhi00:47 → 00:0811:420 min11:4248 min22 Oct
Kolkata00:47 → 00:0810:570 min10:5748 min22 Oct
Singapore02:17 → 01:3811:250 min11:2548 min22 Oct
Sydney05:17 → 04:3811:160 min11:1648 min22 Oct
Suva07:12 → 06:3311:220 min11:2248 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

About Ahargaṇa