Ruling · Jitāṣṭamī (Jitiya) · 1937

Sunday 26 September

Boundaryin Luanda, under the Rashtriya Panchang method. Aṣṭamī reaches pradoṣa on neither day and the rule does not say what then. 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 Sunday 26 September

Taken. Aṣṭamī reaches neither evening; this is the day it falls on.

18:02 sunsetpradoṣa ends 19:37
Aṣṭamī begins 19:42:41
17:3818:0218:2618:5019:1419:3820:02

0 of 95 minutes covered

Evening of Monday 27 September

Aṣṭamī is absent from pradoṣa. Not taken.

18:02 sunsetpradoṣa ends 19:37
Aṣṭamī ends 17:47:37
17:3818:0218:2618:5019:1419:3820:02

0 of 95 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 19:43 on Sun 26 Sep to 17:48 on Mon 27 Sep.

    1937-09-26T18:42:41Z → 1937-09-27T16:47:37Z

  2. 02

    Kāla

    Pradoṣa is 2 muhūrtas after sunset: 18:02–19:37 on the 26th, 18:02–19:37 on the 27th.

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

  3. 03

    Rule

    Aṣṭamī must be present during pradoṣa. It covers 0 of 95 minutes on the 26th and 0 of 95 on the 27th.

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

  4. 04

    Tie-break

    Neither evening qualifies. The day the tithi falls on is taken.

    priority: unstated → tithi-day · margin 325 s

  5. 05

    Ruling

    Jitāṣṭamī, Luanda, 1937: Sunday 26 September.

    confidence: boundary (absent-unstated)

Say it like this

In Luanda, Jitāṣṭamī (Jitiya) 1937 falls on Sunday 26 September. Aṣṭamī runs from 19:43 on Sun 26 Sep to 17:48 on Mon 27 Sep, and reaches pradoṣa on neither day.

ahargana.org/luanda/festivals/1937/jitashtami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSun 26 Sep
Ahargaṇa, classicalDisc centre, no refractionSun 26 Sep
compat-drikpanchangComparison profileSun 26 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 26thCoveredSunset 27thCoveredRuled
Los Angeles10:43 → 08:4817:4496 min17:430 min26 Sep
Chicago12:43 → 10:4817:4196 min17:390 min26 Sep
Jersey City13:43 → 11:4817:4796 min17:450 min26 Sep
Port of Spain14:43 → 12:4818:0095 min17:590 min26 Sep
London19:43 → 17:4818:5044 min18:480 min26 Sep
Durban20:43 → 18:4817:540 min17:5453 min27 Sep
Dubai22:43 → 20:4818:110 min18:1096 min27 Sep
Delhi00:13 → 22:1818:130 min18:1296 min27 Sep
Kolkata00:13 → 22:1817:290 min17:2896 min27 Sep
Singapore02:03 → 00:0818:190 min18:1995 min27 Sep
Sydney04:43 → 02:4817:530 min17:5494 min27 Sep
Suva06:43 → 04:4818:030 min18:0395 min27 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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