Ruling · Akṣaya Navamī (Amla Navami) · 1921

Wednesday 9 November

Boundaryin Riyadh, under the Rashtriya Panchang method. Both forenoons qualify and the rule does not say which to take. Say “contested”.

Decide it for

24°41′ N 46°43′ E · Asia/Riyadh · GeoNames 108410

The two forenoons

One ghaṭī is 24 minutes. Pūrvāhṇa is first 5 of 15 day muhūrtas.

Forenoon of Tuesday 8 November

Qualifies with 96 of 222 minutes. Not taken.

06:10 sunrisepūrvāhṇa ends 09:52
Navamī begins 08:16:30
05:4606:3407:2208:1008:5809:46

96 of 222 minutes covered, the last 96

Forenoon of Wednesday 9 November

Taken. Both forenoons qualify; the rule is silent, and this one is covered longer.

06:11 sunrisepūrvāhṇa ends 09:52
05:4706:3507:2308:1108:5909:47

221 of 221 minutes covered

Navamī presentPūrvāhṇa, the window the rule readsThe instant the tithi begins or ends

How it was decided

  1. 01

    Aṅga

    Navamī runs from 08:16 on Tue 8 Nov to 10:48 on Wed 9 Nov.

    1921-11-08T05:09:38Z → 1921-11-09T07:42:08Z

  2. 02

    Kāla

    Pūrvāhṇa is first 5 of 15 day muhūrtas: 06:10–09:52 on the 8th, 06:11–09:52 on the 9th.

    purvahna: day-muhurta-1-5 · sunrise and sunset: upper limb, 31′ + 16′

  3. 03

    Rule

    Navamī must be present during pūrvāhṇa. It covers 96 of 222 minutes on the 8th and 221 of 221 on the 9th.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104

  4. 04

    Tie-break

    Both forenoons qualify and the rule marks neither. The one covered longer is ruled, as a boundary.

    priority: unstated → greater-coverage · margin 3352 s

  5. 05

    Ruling

    Akṣaya Navamī, Riyadh, 1921: Wednesday 9 November.

    confidence: boundary (tie-break-unstated)

Say it like this

In Riyadh, Akṣaya Navamī (Amla Navami) 1921 falls on Wednesday 9 November. Navamī runs from 08:16 on Tue 8 Nov to 10:48 on Wed 9 Nov and covers all of pūrvāhṇa that forenoon. It also reaches the previous forenoon for 96 minutes; the rule does not say which to take, and the one covered longer is ruled: treat the date as contested.

ahargana.org/riyadh/festivals/1921/akshaya-navami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 9 Nov
Ahargaṇa, classicalDisc centre, no refractionWed 9 Nov
compat-drikpanchangComparison profileWed 9 Nov
No institution has a recorded ruling for Riyadh.

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

The rule, as data

/rules/akshaya-navami · ruleset 2026.3-draft

Month
Kārtika, amānta
Pakṣa · aṅga
Śukla · Navamī
Kāla
Pūrvāhṇa
Priority
Unstated
Tie-break
Longer coverage, as a boundary
Reference
CRC 1955, p. 104

“S 9 Aksaya navami (purvahnavyapini), Jagaddhatri puja (Bengal), (udayavyapini one muhurta), Anla navami (Orissa), Durga navami (purvaviddha), Gauri vrata.” Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104.

The same rule, elsewhere

Twelve places, west to east. Local clock times.

PlaceNavamīSunrise 8thCoveredSunrise 9thCoveredRuled
Los Angeles21:10 → 23:4206:19212 min06:200 min8 Nov
Chicago23:10 → 01:4206:31202 min06:330 min8 Nov
Jersey City00:10 → 02:4206:35203 min06:360 min8 Nov
Port of Spain01:10 → 03:4205:59234 min06:000 min8 Nov
London05:10 → 07:4207:06185 min07:0835 min8 Nov
Durban07:10 → 09:4204:57136 min04:56269 min9 Nov
Dubai09:10 → 11:4206:3162 min06:31221 min9 Nov
Delhi10:40 → 13:1206:380 min06:39217 min9 Nov
Kolkata10:40 → 13:1205:450 min05:45223 min9 Nov
Singapore12:10 → 14:4205:470 min05:47241 min9 Nov
Sydney15:10 → 17:4204:500 min04:49274 min9 Nov
Suva17:10 → 19:4205:250 min05:24257 min9 Nov
Profile · tradition
pac-rp@2026.1 · smarta
Rule
akshaya-navami@2026.3-draft
Engine · kernel
0.1.0 · de440 7eef…ea74
Boundary margin
300 s

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