Ruling · Mahāṣṭamī (Durgāṣṭamī) · 2013

Saturday 12 October

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 328 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 Friday 11 October

Aṣṭamī is absent from madhyāhna. Not taken.

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

0 of 48 minutes covered

Midday of Saturday 12 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

Aṣṭamī presentMadhyāhna, the window the rule readsThe instant the tithi begins or ends

How it was decided

  1. 01

    Aṅga

    Aṣṭamī runs from 20:08 on Fri 11 Oct to 17:57 on Sat 12 Oct.

    2013-10-11T12:08:30Z → 2013-10-12T09:56:35Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:41–12:29 on the 11th, 11:40–12:28 on the 12th.

    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 11th and 48 of 48 on the 12th.

    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 19692 s

  5. 05

    Ruling

    Mahāṣṭamī, Baoding, 2013: Saturday 12 October.

    confidence: determinate

Say it like this

In Baoding, Mahāṣṭamī (Durga Ashtami) 2013 falls on Saturday 12 October. Aṣṭamī runs from 20:08 on Fri 11 Oct to 17:57 on Sat 12 Oct and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/2013/mahashtami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 12 Oct
Ahargaṇa, classicalDisc centre, no refractionSat 12 Oct
compat-drikpanchangComparison profileSat 12 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 11thCoveredMadhyāhna 12thCoveredRuled
Los Angeles05:08 → 02:5712:1548 min12:150 min11 Oct
Chicago07:08 → 04:5712:1348 min12:130 min11 Oct
Jersey City08:08 → 05:5712:1948 min12:180 min11 Oct
Port of Spain08:08 → 05:5711:2948 min11:280 min11 Oct
London13:08 → 10:5712:232 min12:230 min11 Oct
Durban14:08 → 11:5711:190 min11:1938 min12 Oct
Dubai16:08 → 13:5711:410 min11:4148 min12 Oct
Delhi17:38 → 15:2711:440 min11:4348 min12 Oct
Kolkata17:38 → 15:2710:590 min10:5948 min12 Oct
Singapore20:08 → 17:5712:270 min12:2748 min12 Oct
Sydney23:08 → 20:5712:180 min12:1848 min12 Oct
Suva00:08 → 21:5711:290 min11:2948 min12 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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