Ruling · Mahāṣṭamī (Durga Ashtami) · 2073

Sunday 8 October

Determinatein Daqing, under the Rashtriya Panchang method. Clear of every threshold by 600 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 7 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

Midday of Sunday 8 October

Taken. The only midday Aṣṭamī reaches.

madhyāhna begins 11:03  11:51 madhyāhna ends
10:1510:3911:0311:2711:5112:1512:39

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 22:15 on Sat 7 Oct to 21:51 on Sun 8 Oct.

    2073-10-07T14:15:27Z → 2073-10-08T13:51:04Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:04–11:52 on the 7th, 11:03–11:51 on the 8th.

    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 7th and 48 of 48 on the 8th.

    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 35987 s

  5. 05

    Ruling

    Mahāṣṭamī, Daqing, 2073: Sunday 8 October.

    confidence: determinate

Say it like this

In Daqing, Mahāṣṭamī (Durga Ashtami) 2073 falls on Sunday 8 October. Aṣṭamī runs from 22:15 on Sat 7 Oct to 21:51 on Sun 8 Oct and covers all of madhyāhna that midday.

ahargana.org/daqing/festivals/2073/mahashtami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSun 8 Oct
Ahargaṇa, classicalDisc centre, no refractionSun 8 Oct
compat-drikpanchangComparison profileSun 8 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 7thCoveredMadhyāhna 8thCoveredRuled
Los Angeles07:15 → 06:5112:1648 min12:160 min7 Oct
Chicago09:15 → 08:5112:1448 min12:140 min7 Oct
Jersey City10:15 → 09:5112:2048 min12:200 min7 Oct
Port of Spain10:15 → 09:5111:3048 min11:300 min7 Oct
London15:15 → 14:5112:240 min12:2448 min8 Oct
Durban16:15 → 15:5111:200 min11:2048 min8 Oct
Dubai18:15 → 17:5111:420 min11:4248 min8 Oct
Delhi19:45 → 19:2111:450 min11:4448 min8 Oct
Kolkata19:45 → 19:2111:000 min11:0048 min8 Oct
Singapore22:15 → 21:5112:290 min12:2848 min8 Oct
Sydney01:15 → 00:5112:190 min12:1948 min8 Oct
Suva02:15 → 01:5111:300 min11:3048 min8 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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