Ruling · Mahāṣṭamī (Durgāṣṭamī) · 1985

Monday 21 October

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 207 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 20 October

Aṣṭamī is absent from madhyāhna. Not taken.

madhyāhna begins 11:39  12:27 madhyāhna ends
10:5111:1511:3912:0312:2712:5113:15

0 of 48 minutes covered

Midday of Monday 21 October

Taken. The only midday Aṣṭamī reaches.

madhyāhna begins 11:39  12:27 madhyāhna ends
10:5111:1511:3912:0312:2712:5113:15

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 16:42 on Sun 20 Oct to 15:53 on Mon 21 Oct.

    1985-10-20T08:42:13Z → 1985-10-21T07:53:07Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:39–12:27 on the 20th, 11:39–12:27 on the 21st.

    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 20th and 48 of 48 on the 21st.

    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 12393 s

  5. 05

    Ruling

    Mahāṣṭamī, Baoding, 1985: Monday 21 October.

    confidence: determinate

Say it like this

In Baoding, Mahāṣṭamī (Durga Ashtami) 1985 falls on Monday 21 October. Aṣṭamī runs from 16:42 on Sun 20 Oct to 15:53 on Mon 21 Oct and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1985/mahashtami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingMon 21 Oct
Ahargaṇa, classicalDisc centre, no refractionMon 21 Oct
compat-drikpanchangComparison profileMon 21 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 20thCoveredMadhyāhna 21stCoveredRuled
Los Angeles01:42 → 00:5312:1348 min12:130 min20 Oct
Chicago03:42 → 02:5312:1148 min12:110 min20 Oct
Jersey City04:42 → 03:5312:1748 min12:170 min20 Oct
Port of Spain04:42 → 03:5311:2748 min11:270 min20 Oct
London09:42 → 08:5312:2148 min12:210 min20 Oct
Durban10:42 → 09:5311:1748 min11:170 min20 Oct
Dubai12:42 → 11:5311:390 min11:3914 min21 Oct
Delhi14:12 → 13:2311:420 min11:4248 min21 Oct
Kolkata14:12 → 13:2310:570 min10:5748 min21 Oct
Singapore16:42 → 15:5312:250 min12:2548 min21 Oct
Sydney18:42 → 17:5311:160 min11:1648 min21 Oct
Suva20:42 → 19:5311:270 min11:2748 min21 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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