Ruling · Jitāṣṭamī (Jitiya) · 2041

Monday 16 September

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

Decide it for

8°50′ S 13°14′ E · Africa/Luanda · GeoNames 2240449

The two evenings

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

Evening of Monday 16 September

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

18:03 sunsetpradoṣa ends 19:39
Aṣṭamī begins 18:23:09
17:3918:0318:2718:5119:1519:3920:03

76 of 95 minutes covered, the last 76

Evening of Tuesday 17 September

Qualifies with 50 of 95 minutes. Not taken.

18:03 sunsetpradoṣa ends 19:39
Aṣṭamī ends 18:53:35
17:3918:0318:2718:5119:1519:3920:03

50 of 95 minutes covered, the first 50

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

How it was decided

  1. 01

    Aṅga

    Aṣṭamī runs from 18:23 on Mon 16 Sep to 18:54 on Tue 17 Sep.

    2041-09-16T17:23:10Z → 2041-09-17T17:53:36Z

  2. 02

    Kāla

    Pradoṣa is 2 muhūrtas after sunset: 18:03–19:39 on the 16th, 18:03–19:39 on the 17th.

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

  3. 03

    Rule

    Aṣṭamī must be present during pradoṣa. It covers 76 of 95 minutes on the 16th and 50 of 95 on the 17th.

    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 1181 s

  5. 05

    Ruling

    Jitāṣṭamī, Luanda, 2041: Monday 16 September.

    confidence: boundary (tie-break-unstated)

Say it like this

In Luanda, Jitāṣṭamī (Jitiya) 2041 falls on Monday 16 September. Aṣṭamī runs from 18:23 on Mon 16 Sep to 18:54 on Tue 17 Sep and covers 76 of 95 minutes of pradoṣa that evening. It also reaches the next evening for 50 minutes; the rule does not say which to take, and the one covered longer is ruled: treat the date as contested.

ahargana.org/luanda/festivals/2041/jitashtami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingMon 16 Sep
Ahargaṇa, classicalDisc centre, no refractionMon 16 Sep
compat-drikpanchangComparison profileMon 16 Sep
No institution has a recorded ruling for Luanda.

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 16thCoveredSunset 17thCoveredRuled
Los Angeles10:23 → 10:5418:5793 min18:560 min16 Sep
Chicago12:23 → 12:5418:5793 min18:550 min16 Sep
Jersey City13:23 → 13:5419:0393 min19:010 min16 Sep
Port of Spain13:23 → 13:5418:0695 min18:050 min16 Sep
London18:23 → 18:5419:1292 min19:090 min16 Sep
Durban19:23 → 19:5417:492 min17:4996 min17 Sep
Dubai21:23 → 21:5418:210 min18:2094 min17 Sep
Delhi22:53 → 23:2418:250 min18:2394 min17 Sep
Kolkata22:53 → 23:2417:390 min17:3894 min17 Sep
Singapore01:23 → 01:5419:030 min19:0295 min17 Sep
Sydney03:23 → 03:5417:470 min17:4896 min17 Sep
Suva05:23 → 05:5418:010 min18:0196 min17 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

About Ahargaṇa