Ruling · Mahāṣṭamī (Durgāṣṭamī) · 2070

Sunday 12 October

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 358 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 12 October

Taken. The only midday Aṣṭamī reaches.

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

48 of 48 minutes covered

Midday of Monday 13 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 03:34 on Sun 12 Oct to 05:42 on Mon 13 Oct.

    2070-10-11T19:33:45Z → 2070-10-12T21:41:59Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:41–12:29 on the 12th, 11:40–12:28 on the 13th.

    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 12th and 0 of 48 on the 13th.

    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 21497 s

  5. 05

    Ruling

    Mahāṣṭamī, Baoding, 2070: Sunday 12 October.

    confidence: determinate

Say it like this

In Baoding, Mahāṣṭamī (Durga Ashtami) 2070 falls on Sunday 12 October. Aṣṭamī runs from 03:34 on Sun 12 Oct to 05:42 on Mon 13 Oct and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/2070/mahashtami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSun 12 Oct
Ahargaṇa, classicalDisc centre, no refractionSun 12 Oct
compat-drikpanchangComparison profileSun 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 Angeles12:34 → 14:4212:1530 min12:1548 min12 Oct
Chicago14:34 → 16:4212:130 min12:1348 min12 Oct
Jersey City15:34 → 17:4212:190 min12:1948 min12 Oct
Port of Spain15:34 → 17:4211:290 min11:2948 min12 Oct
London20:34 → 22:4212:230 min12:2348 min12 Oct
Durban21:34 → 23:4211:190 min11:1948 min12 Oct
Dubai23:34 → 01:4211:410 min11:4148 min12 Oct
Delhi01:04 → 03:1211:440 min11:4348 min12 Oct
Kolkata01:04 → 03:1210:590 min10:5948 min12 Oct
Singapore03:34 → 05:4212:270 min12:2748 min12 Oct
Sydney06:34 → 08:4212:180 min12:1848 min12 Oct
Suva07:34 → 09:4211:290 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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