Ruling · Mahāṣṭamī (Durgāṣṭamī) · 2093

Monday 28 September

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 369 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 27 September

Aṣṭamī is absent from madhyāhna. Not taken.

madhyāhna begins 11:45  12:33 madhyāhna ends
10:5711:2111:4512:0912:3312:5713:21

0 of 48 minutes covered

Midday of Monday 28 September

Taken. The only midday Aṣṭamī reaches.

madhyāhna begins 11:45  12:33 madhyāhna ends
10:5711:2111:4512:0912:3312:5713:21

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 20:38 on Sun 27 Sep to 18:41 on Mon 28 Sep.

    2093-09-27T12:37:35Z → 2093-09-28T10:41:28Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:45–12:33 on the 27th, 11:45–12:33 on the 28th.

    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 27th and 48 of 48 on the 28th.

    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 22126 s

  5. 05

    Ruling

    Mahāṣṭamī, Baoding, 2093: Monday 28 September.

    confidence: determinate

Say it like this

In Baoding, Mahāṣṭamī (Durga Ashtami) 2093 falls on Monday 28 September. Aṣṭamī runs from 20:38 on Sun 27 Sep to 18:41 on Mon 28 Sep and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/2093/mahashtami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingMon 28 Sep
Ahargaṇa, classicalDisc centre, no refractionMon 28 Sep
compat-drikpanchangComparison profileMon 28 Sep
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 27thCoveredMadhyāhna 28thCoveredRuled
Los Angeles05:38 → 03:4112:2048 min12:190 min27 Sep
Chicago07:38 → 05:4112:1748 min12:170 min27 Sep
Jersey City08:38 → 06:4112:2348 min12:230 min27 Sep
Port of Spain08:38 → 06:4111:3348 min11:330 min27 Sep
London13:38 → 11:4112:270 min12:270 min28 Sep
Durban14:38 → 12:4111:230 min11:2348 min28 Sep
Dubai16:38 → 14:4111:460 min11:4548 min28 Sep
Delhi18:08 → 16:1111:480 min11:4848 min28 Sep
Kolkata18:08 → 16:1111:040 min11:0348 min28 Sep
Singapore20:38 → 18:4112:320 min12:3148 min28 Sep
Sydney22:38 → 20:4111:230 min11:2248 min28 Sep
Suva00:38 → 22:4111:340 min11:3348 min28 Sep
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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