Ruling · Mahāṣṭamī (Durgāṣṭamī) · 2071

Thursday 1 October

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 614 minutes.

Decide it for

38°52′ N 115°28′ E · Asia/Shanghai · GeoNames 1816971

The two middays

One ghaṭī is 24 minutes. Madhyāhna is 1 ghaṭikā either side of midday.

Midday of Thursday 1 October

Taken. The only midday Aṣṭamī reaches.

madhyāhna begins 11:44  12:32 madhyāhna ends
10:5611:2011:4412:0812:3212:5613:20

48 of 48 minutes covered

Midday of Friday 2 October

Aṣṭamī is absent from madhyāhna. Not taken.

madhyāhna begins 11:43  12:31 madhyāhna ends
10:5511:1911:4312:0712:3112:5513:19

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 23:20 on Wed 30 Sep to 01:30 on Fri 2 Oct.

    2071-09-30T15:19:40Z → 2071-10-01T17:29:36Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:44–12:32 on the 1st, 11:43–12:31 on the 2nd.

    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 1st and 0 of 48 on the 2nd.

    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 36830 s

  5. 05

    Ruling

    Mahāṣṭamī, Baoding, 2071: Thursday 1 October.

    confidence: determinate

Say it like this

In Baoding, Mahāṣṭamī (Durga Ashtami) 2071 falls on Thursday 1 October. Aṣṭamī runs from 23:20 on Wed 30 Sep to 01:30 on Fri 2 Oct and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/2071/mahashtami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 1 Oct
Ahargaṇa, classicalDisc centre, no refractionThu 1 Oct
compat-drikpanchangComparison profileThu 1 Oct
No institution has a recorded ruling for Baoding.

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 30thCoveredMadhyāhna 1stCoveredRuled
Los Angeles08:20 → 10:3012:1948 min12:180 min30 Sep
Chicago10:20 → 12:3012:1648 min12:1614 min1 Oct
Jersey City11:20 → 13:3012:2248 min12:2248 min1 Oct
Port of Spain11:20 → 13:3011:3248 min11:3248 min1 Oct
London16:20 → 18:3012:260 min12:2648 min1 Oct
Durban17:20 → 19:3011:220 min11:2248 min1 Oct
Dubai19:20 → 21:3011:450 min11:4448 min1 Oct
Delhi20:50 → 23:0011:470 min11:4748 min1 Oct
Kolkata20:50 → 23:0011:030 min11:0248 min1 Oct
Singapore23:20 → 01:3012:310 min12:3048 min1 Oct
Sydney01:20 → 03:3011:220 min11:2148 min1 Oct
Suva03:20 → 05:3011:330 min11:3248 min1 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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