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October 2021 · each Moon as it stands at sunriseBhādrapada Kṛṣṇa to Āśvina KṛṣṇaThe month ›

Ruling · 2021 · Doha

Mahāṣṭamī

Durga Ashtami

Wednesday 13 October2021 · Doha, Baladiyat ad Dawhah, Qatar

Determinatemargin 354 min

In Doha, under the Rashtriya Panchang method. Clear of every threshold by 354 minutes.

Decide it forDohaDelhiKolkataSingaporeSydneyJersey City25°17′ N 51°32′ E · Asia/Qatar · GeoNames 290030

The two middays मध्याह्न

One ghaṭī is 24 minutes

Madhyāhna is 1 ghaṭikā either side of midday.

Midday of Tuesday 12 October

Aṣṭamī is absent from madhyāhna. Not taken.

madhyāhna begins 10:56  11:44 madhyāhna ends
10:0810:3210:5611:2011:4412:0812:32

0 of 48 minutes covered

Midday of Wednesday 13 October

Taken. The only midday Aṣṭamī reaches.

madhyāhna begins 10:56  11:44 madhyāhna ends
10:0810:3210:5611:2011:4412:0812:32

48 of 48 minutes covered

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

How it was decided निर्णय

  1. Step 1, Aṅga

    Aṣṭamī runs from 19:18 on Tue 12 Oct to 17:38 on Wed 13 Oct.

    2021-10-12T16:18:03Z → 2021-10-13T14:38:14Z
  2. Step 2, Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 10:56–11:44 on the 12th, 10:56–11:44 on the 13th.

    madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′
  3. Step 3, Rule

    Aṣṭamī must be present during madhyāhna. It covers 0 of 48 minutes on the 12th and 48 of 48 on the 13th.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104
  4. Step 4, Tie-break

    Only one midday qualifies. No tie-break is needed.

    one day qualifies → only-day · margin 21258 s
  5. Step 5, Ruling

    Mahāṣṭamī, Doha, 2021: Wednesday 13 October.

    confidence: determinate

Say it like this

In Doha, Mahāṣṭamī (Durga Ashtami) 2021 falls on Wednesday 13 October. Aṣṭamī runs from 19:18 on Tue 12 Oct to 17:38 on Wed 13 Oct and covers all of madhyāhna that midday.

ahargana.org/doha/festivals/2021/mahashtamipac-rp@2026.1

Who says what

never edited to agree

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 13 Oct
Ahargaṇa, classicalDisc centre, no refractionWed 13 Oct
compat-drikpanchangComparison profileWed 13 Oct
No institution has a recorded ruling for Doha.

Institutional rulings are recorded with a source address, and are never edited to agree.

The rule, as data

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 clocks

PlaceAṣṭamīMadhyāhna 12thCoveredMadhyāhna 13thCoveredRuled
Los Angeles09:18 → 07:3812:1548 min12:150 min12 Oct
Chicago11:18 → 09:3812:1348 min12:120 min12 Oct
Jersey City12:18 → 10:3812:1848 min12:180 min12 Oct
Port of Spain12:18 → 10:3811:280 min11:280 min13 Oct
London17:18 → 15:3812:220 min12:2248 min13 Oct
Durban18:18 → 16:3811:190 min11:1848 min13 Oct
Dubai20:18 → 18:3811:410 min11:4148 min13 Oct
Delhi21:48 → 20:0811:430 min11:4348 min13 Oct
Kolkata21:48 → 20:0810:590 min10:5948 min13 Oct
Singapore00:18 → 22:3812:270 min12:2748 min13 Oct
Sydney03:18 → 01:3812:180 min12:1848 min13 Oct
Suva04:18 → 02:3811:290 min11:2948 min13 Oct
This ruling as JSON · ICS
Profile · tradition
pac-rp@2026.1 · smarta
Rule
mahashtami@2026.3-draft
Engine · kernel
0.1.0 · de440 7eef…ea74
Boundary margin
300 s