Ruling · Mahāṣṭamī (Durgāṣṭamī) · 2010

Friday 15 October

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 255 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 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

Midday of Friday 15 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 16:43 on Thu 14 Oct to 18:21 on Fri 15 Oct.

    2010-10-14T08:43:21Z → 2010-10-15T10:20:55Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:40–12:28 on the 14th, 11:40–12:28 on the 15th.

    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 14th and 48 of 48 on the 15th.

    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 15322 s

  5. 05

    Ruling

    Mahāṣṭamī, Baoding, 2010: Friday 15 October.

    confidence: determinate

Say it like this

In Baoding, Mahāṣṭamī (Durga Ashtami) 2010 falls on Friday 15 October. Aṣṭamī runs from 16:43 on Thu 14 Oct to 18:21 on Fri 15 Oct and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/2010/mahashtami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingFri 15 Oct
Ahargaṇa, classicalDisc centre, no refractionFri 15 Oct
compat-drikpanchangComparison profileFri 15 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 14thCoveredMadhyāhna 15thCoveredRuled
Los Angeles01:43 → 03:2112:1548 min12:140 min14 Oct
Chicago03:43 → 05:2112:1248 min12:120 min14 Oct
Jersey City04:43 → 06:2112:1848 min12:180 min14 Oct
Port of Spain04:43 → 06:2111:2848 min11:280 min14 Oct
London09:43 → 11:2112:2248 min12:220 min14 Oct
Durban10:43 → 12:2111:1848 min11:1848 min15 Oct
Dubai12:43 → 14:2111:410 min11:4048 min15 Oct
Delhi14:13 → 15:5111:430 min11:4348 min15 Oct
Kolkata14:13 → 15:5110:580 min10:5848 min15 Oct
Singapore16:43 → 18:2112:270 min12:2648 min15 Oct
Sydney19:43 → 21:2112:180 min12:1748 min15 Oct
Suva20:43 → 22:2111:290 min11:2848 min15 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

About Ahargaṇa