Ruling · Mahāṣṭamī (Durgāṣṭamī) · 1998

Tuesday 29 September

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 244 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 Monday 28 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 Tuesday 29 September

Taken. The only midday Aṣṭamī reaches.

madhyāhna begins 11:44  12:32 madhyāhna ends
10:5611:2011:4412:0812:3212:5613:20

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 16:36 on Mon 28 Sep to 17:35 on Tue 29 Sep.

    1998-09-28T08:36:19Z → 1998-09-29T09:35:01Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:45–12:33 on the 28th, 11:44–12:32 on the 29th.

    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 28th and 48 of 48 on the 29th.

    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 14620 s

  5. 05

    Ruling

    Mahāṣṭamī, Baoding, 1998: Tuesday 29 September.

    confidence: determinate

Say it like this

In Baoding, Mahāṣṭamī (Durga Ashtami) 1998 falls on Tuesday 29 September. Aṣṭamī runs from 16:36 on Mon 28 Sep to 17:35 on Tue 29 Sep and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1998/mahashtami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 29 Sep
Ahargaṇa, classicalDisc centre, no refractionTue 29 Sep
compat-drikpanchangComparison profileTue 29 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 28thCoveredMadhyāhna 29thCoveredRuled
Los Angeles01:36 → 02:3512:1948 min12:190 min28 Sep
Chicago03:36 → 04:3512:1748 min12:170 min28 Sep
Jersey City04:36 → 05:3512:2348 min12:220 min28 Sep
Port of Spain04:36 → 05:3511:3348 min11:320 min28 Sep
London09:36 → 10:3512:2748 min12:260 min28 Sep
Durban10:36 → 11:3511:2348 min11:2312 min29 Sep
Dubai12:36 → 13:3511:450 min11:4548 min29 Sep
Delhi14:06 → 15:0511:480 min11:4748 min29 Sep
Kolkata14:06 → 15:0511:030 min11:0348 min29 Sep
Singapore16:36 → 17:3512:310 min12:3148 min29 Sep
Sydney18:36 → 19:3511:220 min11:2248 min29 Sep
Suva20:36 → 21:3511:330 min11:3348 min29 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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