Ruling · Mahāṣṭamī (Durgāṣṭamī) · 2029

Sunday 14 October

Determinatein Ujjain, under the Rashtriya Panchang method. Clear of every threshold by 410 minutes.

Decide it for

23°11′ N 75°47′ E · Asia/Kolkata · GeoNames 1253914

The two middays

One ghaṭī is 24 minutes. Madhyāhna is 1 ghaṭikā either side of midday.

Midday of Sunday 14 October

Taken. The only midday Aṣṭamī reaches.

madhyāhna begins 11:49  12:37 madhyāhna ends
11:0111:2511:4912:1312:3713:0113:25

48 of 48 minutes covered

Midday of Monday 15 October

Aṣṭamī is absent from madhyāhna. Not taken.

madhyāhna begins 11:49  12:37 madhyāhna ends
11:0111:2511:4912:1312:3713:0113:25

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 04:59 on Sun 14 Oct to 04:29 on Mon 15 Oct.

    2029-10-13T23:29:09Z → 2029-10-14T22:58:58Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:49–12:37 on the 14th, 11:49–12:37 on the 15th.

    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 14th and 0 of 48 on the 15th.

    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 24575 s

  5. 05

    Ruling

    Mahāṣṭamī, Ujjain, 2029: Sunday 14 October.

    confidence: determinate

Say it like this

In Ujjain, Mahāṣṭamī (Durga Ashtami) 2029 falls on Sunday 14 October. Aṣṭamī runs from 04:59 on Sun 14 Oct to 04:29 on Mon 15 Oct and covers all of madhyāhna that midday.

ahargana.org/ujjain/festivals/2029/mahashtami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSun 14 Oct
Ahargaṇa, classicalDisc centre, no refractionSun 14 Oct
compat-drikpanchangComparison profileSun 14 Oct
No institution has a recorded ruling for Ujjain.

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 13thCoveredMadhyāhna 14thCoveredRuled
Los Angeles16:29 → 15:5912:150 min12:1548 min14 Oct
Chicago18:29 → 17:5912:120 min12:1248 min14 Oct
Jersey City19:29 → 18:5912:180 min12:1848 min14 Oct
Port of Spain19:29 → 18:5911:280 min11:2848 min14 Oct
London00:29 → 23:5912:220 min12:2248 min14 Oct
Durban01:29 → 00:5911:180 min11:1848 min14 Oct
Dubai03:29 → 02:5911:410 min11:4148 min14 Oct
Delhi04:59 → 04:2911:430 min11:4348 min14 Oct
Kolkata04:59 → 04:2910:590 min10:5848 min14 Oct
Singapore07:29 → 06:5912:270 min12:2748 min14 Oct
Sydney10:29 → 09:5912:180 min12:1748 min14 Oct
Suva11:29 → 10:5911:290 min11:2847 min14 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