Ruling · Jitāṣṭamī (Jitiya) · 2020

Thursday 10 September

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

Decide it for

14°42′ N 17°27′ W · Africa/Dakar · GeoNames 2253354

The two evenings

One ghaṭī is 24 minutes. Pradoṣa is 2 muhūrtas after sunset.

Evening of Wednesday 9 September

Qualifies with 13 of 94 minutes. Not taken.

19:15 sunsetpradoṣa ends 20:49
Aṣṭamī begins 20:36:13
18:5119:1519:3920:0320:2720:5121:15

13 of 94 minutes covered, the last 13

Evening of Thursday 10 September

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

19:14 sunsetpradoṣa ends 20:48
18:5019:1419:3820:0220:2620:5021:14

94 of 94 minutes covered

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

How it was decided

  1. 01

    Aṅga

    Aṣṭamī runs from 20:36 on Wed 9 Sep to 22:05 on Thu 10 Sep.

    2020-09-09T20:36:14Z → 2020-09-10T22:05:18Z

  2. 02

    Kāla

    Pradoṣa is 2 muhūrtas after sunset: 19:15–20:49 on the 9th, 19:14–20:48 on the 10th.

    pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′

  3. 03

    Rule

    Aṣṭamī must be present during pradoṣa. It covers 13 of 94 minutes on the 9th and 94 of 94 on the 10th.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103

  4. 04

    Tie-break

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

    priority: unstated → greater-coverage · margin 766 s

  5. 05

    Ruling

    Jitāṣṭamī, Dakar, 2020: Thursday 10 September.

    confidence: boundary (tie-break-unstated)

Say it like this

In Dakar, Jitāṣṭamī (Jitiya) 2020 falls on Thursday 10 September. Aṣṭamī runs from 20:36 on Wed 9 Sep to 22:05 on Thu 10 Sep and covers all of pradoṣa that evening. It also reaches the previous evening for 13 minutes; the rule does not say which to take, and the one covered longer is ruled: treat the date as contested.

ahargana.org/dakar/festivals/2020/jitashtami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 10 Sep
Ahargaṇa, classicalDisc centre, no refractionThu 10 Sep
compat-drikpanchangComparison profileThu 10 Sep
No institution has a recorded ruling for Dakar.

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

The rule, as data

/rules/jitashtami · ruleset 2026.3-draft

Month
Bhādrapada, amānta
Pakṣa · aṅga
Kṛṣṇa · Aṣṭamī
Kāla
Pradoṣa
Priority
Unstated
Tie-break
Longer coverage, as a boundary
Reference
CRC 1955, p. 103

“K 8 Mahalaksmi vrata samapana (current at moonrise), Jitastami (pradosa), Jimutavahana puja” Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103.

The same rule, elsewhere

Twelve places, west to east. Local clock times.

PlaceAṣṭamīSunset 9thCoveredSunset 10thCoveredRuled
Los Angeles13:36 → 15:0519:0792 min19:050 min9 Sep
Chicago15:36 → 17:0519:0990 min19:070 min9 Sep
Jersey City16:36 → 18:0519:1490 min19:130 min9 Sep
Port of Spain16:36 → 18:0518:1094 min18:090 min9 Sep
London21:36 → 23:0519:280 min19:2589 min10 Sep
Durban22:36 → 00:0517:450 min17:4698 min10 Sep
Dubai00:36 → 02:0518:290 min18:2893 min10 Sep
Delhi02:06 → 03:3518:330 min18:3292 min10 Sep
Kolkata02:06 → 03:3517:450 min17:4493 min10 Sep
Singapore04:36 → 06:0519:050 min19:0595 min10 Sep
Sydney06:36 → 08:0517:420 min17:4398 min10 Sep
Suva08:36 → 10:0518:000 min18:0097 min10 Sep
Profile · tradition
pac-rp@2026.1 · smarta
Rule
jitashtami@2026.3-draft
Engine · kernel
0.1.0 · de440 7eef…ea74
Boundary margin
300 s

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