Ruling · Mahāṣṭamī (Durgāṣṭamī) · 2097

Sunday 13 October

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 292 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 Sunday 13 October

Taken. The only midday Aṣṭamī reaches.

madhyāhna begins 11:40  12:28 madhyāhna ends
10:5211:1611:4012:0412:2812:5213:16

48 of 48 minutes covered

Midday of Monday 14 October

Aṣṭamī is absent from madhyāhna. Not taken.

madhyāhna begins 11:40  12:28 madhyāhna ends
10:5211:1611:4012:0412:2812:5213:16

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 04:24 on Sun 13 Oct to 06:48 on Mon 14 Oct.

    2097-10-12T20:23:46Z → 2097-10-13T22:48:21Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:40–12:28 on the 13th, 11:40–12:28 on the 14th.

    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 13th and 0 of 48 on the 14th.

    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 17507 s

  5. 05

    Ruling

    Mahāṣṭamī, Baoding, 2097: Sunday 13 October.

    confidence: determinate

Say it like this

In Baoding, Mahāṣṭamī (Durga Ashtami) 2097 falls on Sunday 13 October. Aṣṭamī runs from 04:24 on Sun 13 Oct to 06:48 on Mon 14 Oct and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/2097/mahashtami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSun 13 Oct
Ahargaṇa, classicalDisc centre, no refractionSun 13 Oct
compat-drikpanchangComparison profileSun 13 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 12thCoveredMadhyāhna 13thCoveredRuled
Los Angeles13:24 → 15:4812:150 min12:1548 min13 Oct
Chicago15:24 → 17:4812:130 min12:1348 min13 Oct
Jersey City16:24 → 18:4812:190 min12:1848 min13 Oct
Port of Spain16:24 → 18:4811:290 min11:2848 min13 Oct
London21:24 → 23:4812:230 min12:2248 min13 Oct
Durban22:24 → 00:4811:190 min11:1948 min13 Oct
Dubai00:24 → 02:4811:410 min11:4148 min13 Oct
Delhi01:54 → 04:1811:440 min11:4348 min13 Oct
Kolkata01:54 → 04:1810:590 min10:5948 min13 Oct
Singapore04:24 → 06:4812:270 min12:2748 min13 Oct
Sydney07:24 → 09:4812:180 min12:1848 min13 Oct
Suva08:24 → 10:4811:290 min11:2948 min13 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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