Ruling · Mahāṣṭamī (Durgāṣṭamī) · 2006

Saturday 30 September

Determinatein Daqing, under the Rashtriya Panchang method. Clear of every threshold by 231 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 Saturday 30 September

Taken. The only midday Aṣṭamī reaches.

madhyāhna begins 11:06  11:54 madhyāhna ends
10:1810:4211:0611:3011:5412:1812:42

48 of 48 minutes covered

Midday of Sunday 1 October

Aṣṭamī is absent from madhyāhna. Not taken.

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

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 07:15 on Sat 30 Sep to 06:42 on Sun 1 Oct.

    2006-09-29T23:14:50Z → 2006-09-30T22:42:16Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:06–11:54 on the 30th, 11:05–11:53 on the 1st.

    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 30th and 0 of 48 on the 1st.

    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 13854 s

  5. 05

    Ruling

    Mahāṣṭamī, Daqing, 2006: Saturday 30 September.

    confidence: determinate

Say it like this

In Daqing, Mahāṣṭamī (Durga Ashtami) 2006 falls on Saturday 30 September. Aṣṭamī runs from 07:15 on Sat 30 Sep to 06:42 on Sun 1 Oct and covers all of madhyāhna that midday.

ahargana.org/daqing/festivals/2006/mahashtami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 30 Sep
Ahargaṇa, classicalDisc centre, no refractionSat 30 Sep
compat-drikpanchangComparison profileSat 30 Sep
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 29thCoveredMadhyāhna 30thCoveredRuled
Los Angeles16:15 → 15:4212:190 min12:1948 min30 Sep
Chicago18:15 → 17:4212:170 min12:1648 min30 Sep
Jersey City19:15 → 18:4212:220 min12:2248 min30 Sep
Port of Spain19:15 → 18:4211:320 min11:3248 min30 Sep
London00:15 → 23:4212:260 min12:2648 min30 Sep
Durban01:15 → 00:4211:220 min11:2248 min30 Sep
Dubai03:15 → 02:4211:450 min11:4548 min30 Sep
Delhi04:45 → 04:1211:470 min11:4748 min30 Sep
Kolkata04:45 → 04:1211:030 min11:0248 min30 Sep
Singapore07:15 → 06:4212:310 min12:3148 min30 Sep
Sydney09:15 → 08:4211:220 min11:2248 min30 Sep
Suva11:15 → 10:4211:330 min11:3348 min30 Sep
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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