Ruling · Mahāṣṭamī (Durgāṣṭamī) · 2066

Sunday 26 September

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 24 minutes.

Decide it for

BaodingDelhiKolkataSingaporeSydneyJersey City

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 26 September

Taken. The only midday Aṣṭamī reaches.

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

48 of 48 minutes covered

Midday of Monday 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

Aṣṭamī presentMadhyāhna, the window the rule readsThe instant the tithi begins or ends

How it was decided

  1. 01

    Aṅga

    Aṣṭamī runs from 11:21 on Sun 26 Sep to 09:18 on Mon 27 Sep.

    2066-09-26T03:21:10Z → 2066-09-27T01:18:08Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:45–12:33 on the 26th, 11:45–12:33 on the 27th.

    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 26th and 0 of 48 on the 27th.

    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 1449 s

  5. 05

    Ruling

    Mahāṣṭamī, Baoding, 2066: Sunday 26 September.

    confidence: determinate

Say it like this

In Baoding, Mahāṣṭamī (Durga Ashtami) 2066 falls on Sunday 26 September. Aṣṭamī runs from 11:21 on Sun 26 Sep to 09:18 on Mon 27 Sep and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/2066/mahashtami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSun 26 Sep
Ahargaṇa, classicalDisc centre, no refractionSun 26 Sep
compat-drikpanchangComparison profileSun 26 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 26thCoveredMadhyāhna 27thCoveredRuled
Los Angeles20:21 → 18:1812:2048 min12:200 min26 Sep
Chicago22:21 → 20:1812:1848 min12:170 min26 Sep
Jersey City23:21 → 21:1812:2348 min12:230 min26 Sep
Port of Spain23:21 → 21:1811:3348 min11:330 min26 Sep
London04:21 → 02:1812:2748 min12:270 min26 Sep
Durban05:21 → 03:1811:2448 min11:230 min26 Sep
Dubai07:21 → 05:1811:4648 min11:460 min26 Sep
Delhi08:51 → 06:4811:4848 min11:480 min26 Sep
Kolkata08:51 → 06:4811:0448 min11:040 min26 Sep
Singapore11:21 → 09:1812:3248 min12:320 min26 Sep
Sydney13:21 → 11:1811:230 min11:230 min27 Sep
Suva15:21 → 13:1811:340 min11:3448 min27 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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