Ruling · Mahāṣṭamī (Durgāṣṭamī) · 2081

Friday 10 October

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 5 min 10 s.

Decide it for

BaodingDelhiKolkataSingaporeSydneyJersey City

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 9 October

Qualifies with 48 of 48 minutes. Not taken.

madhyāhna begins 11:41  12:29 madhyāhna ends
Aṣṭamī begins 11:36:06
10:5311:1711:4112:0512:2912:5313:17

48 of 48 minutes covered

Midday of Friday 10 October

Taken. Both middays qualify; the rule takes the second.

madhyāhna begins 11:41  12:29 madhyāhna ends
Aṣṭamī ends 12:34:43
10:5311:1711:4112:0512:2912:5313:17

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 11:36 on Thu 9 Oct to 12:35 on Fri 10 Oct.

    2081-10-09T03:36:06Z → 2081-10-10T04:34:43Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:41–12:29 on the 9th, 11:41–12:29 on the 10th.

    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 9th and 48 of 48 on the 10th.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104

  4. 04

    Tie-break

    Both middays qualify. Paraviddhā: the second is taken.

    priority: paraviddha → paraviddha · margin 310 s

  5. 05

    Ruling

    Mahāṣṭamī, Baoding, 2081: Friday 10 October.

    confidence: determinate

Say it like this

In Baoding, Mahāṣṭamī (Durga Ashtami) 2081 falls on Friday 10 October. Aṣṭamī runs from 11:36 on Thu 9 Oct to 12:35 on Fri 10 Oct and covers all of madhyāhna that midday. It also reaches the previous midday for 48 minutes; by the rule the second midday is taken.

ahargana.org/baoding/festivals/2081/mahashtami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingFri 10 Oct
Ahargaṇa, classicalDisc centre, no refractionFri 10 Oct
compat-drikpanchangComparison profileFri 10 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 9thCoveredMadhyāhna 10thCoveredRuled
Los Angeles20:36 → 21:3512:1648 min12:160 min9 Oct
Chicago22:36 → 23:3512:1448 min12:130 min9 Oct
Jersey City23:36 → 00:3512:1948 min12:190 min9 Oct
Port of Spain23:36 → 00:3511:2948 min11:290 min9 Oct
London04:36 → 05:3512:2348 min12:230 min9 Oct
Durban05:36 → 06:3511:1948 min11:190 min9 Oct
Dubai07:36 → 08:3511:4248 min11:420 min9 Oct
Delhi09:06 → 10:0511:4448 min11:440 min9 Oct
Kolkata09:06 → 10:0511:0048 min11:000 min9 Oct
Singapore11:36 → 12:3512:2848 min12:287 min10 Oct
Sydney14:36 → 15:3512:190 min12:1948 min10 Oct
Suva15:36 → 16:3511:300 min11:3048 min10 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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