Ruling · Mahāṣṭamī (Durgāṣṭamī) · 2049

Monday 4 October

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 308 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 4 October

Taken. The only midday Aṣṭamī reaches.

madhyāhna begins 11:43  12:31 madhyāhna ends
10:5511:1911:4312:0712:3112:5513:19

48 of 48 minutes covered

Midday of Tuesday 5 October

Aṣṭamī is absent from madhyāhna. Not taken.

madhyāhna begins 11:42  12:30 madhyāhna ends
10:5411:1811:4212:0612:3012:5413:18

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 06:35 on Mon 4 Oct to 04:38 on Tue 5 Oct.

    2049-10-03T22:34:37Z → 2049-10-04T20:38:15Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:43–12:31 on the 4th, 11:42–12:30 on the 5th.

    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 4th and 0 of 48 on the 5th.

    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 18480 s

  5. 05

    Ruling

    Mahāṣṭamī, Baoding, 2049: Monday 4 October.

    confidence: determinate

Say it like this

In Baoding, Mahāṣṭamī (Durga Ashtami) 2049 falls on Monday 4 October. Aṣṭamī runs from 06:35 on Mon 4 Oct to 04:38 on Tue 5 Oct and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/2049/mahashtami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingMon 4 Oct
Ahargaṇa, classicalDisc centre, no refractionMon 4 Oct
compat-drikpanchangComparison profileMon 4 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 3rdCoveredMadhyāhna 4thCoveredRuled
Los Angeles15:35 → 13:3812:180 min12:1748 min4 Oct
Chicago17:35 → 15:3812:150 min12:1548 min4 Oct
Jersey City18:35 → 16:3812:210 min12:2148 min4 Oct
Port of Spain18:35 → 16:3811:310 min11:3148 min4 Oct
London23:35 → 21:3812:250 min12:2548 min4 Oct
Durban00:35 → 22:3811:210 min11:2148 min4 Oct
Dubai02:35 → 00:3811:440 min11:4348 min4 Oct
Delhi04:05 → 02:0811:460 min11:4648 min4 Oct
Kolkata04:05 → 02:0811:010 min11:0148 min4 Oct
Singapore06:35 → 04:3812:300 min12:2948 min4 Oct
Sydney09:35 → 07:3812:210 min12:2048 min4 Oct
Suva10:35 → 08:3811:320 min11:3148 min4 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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