Ruling · Jitāṣṭamī (Jitiya) · 1911

Friday 15 September

Determinatein Luanda, under the Rashtriya Panchang method. Clear of every threshold by 606 minutes.

Decide it for

LuandaDelhiKolkataSingaporeSydneyJersey City

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 Thursday 14 September

Aṣṭamī is absent from pradoṣa. Not taken.

17:17 sunsetpradoṣa ends 18:52
16:5317:1717:4118:0518:2918:5319:17

0 of 96 minutes covered

Evening of Friday 15 September

Taken. The only evening Aṣṭamī reaches.

17:17 sunsetpradoṣa ends 18:52
16:5317:1717:4118:0518:2918:5319:17

96 of 96 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 07:08 on Fri 15 Sep to 04:58 on Sat 16 Sep.

    1911-09-15T06:54:39Z → 1911-09-16T04:44:47Z

  2. 02

    Kāla

    Pradoṣa is 2 muhūrtas after sunset: 17:17–18:52 on the 14th, 17:17–18:52 on the 15th.

    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 96 minutes on the 14th and 96 of 96 on the 15th.

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

  4. 04

    Tie-break

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

    priority: unstated → only-day · margin 36330 s

  5. 05

    Ruling

    Jitāṣṭamī, Luanda, 1911: Friday 15 September.

    confidence: determinate

Say it like this

In Luanda, Jitāṣṭamī (Jitiya) 1911 falls on Friday 15 September. Aṣṭamī runs from 07:08 on Fri 15 Sep to 04:58 on Sat 16 Sep and covers all of pradoṣa that evening.

ahargana.org/luanda/festivals/1911/jitashtami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingFri 15 Sep
Ahargaṇa, classicalDisc centre, no refractionFri 15 Sep
compat-drikpanchangComparison profileFri 15 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 15thCoveredSunset 16thCoveredRuled
Los Angeles22:55 → 20:4518:0193 min17:590 min15 Sep
Chicago00:55 → 22:4518:0292 min18:000 min15 Sep
Jersey City01:55 → 23:4518:0792 min18:050 min15 Sep
Port of Spain02:55 → 00:4518:0795 min18:060 min15 Sep
London06:55 → 04:4518:1790 min18:150 min15 Sep
Durban08:55 → 06:4517:4797 min17:480 min15 Sep
Dubai10:36 → 08:2618:0593 min18:040 min15 Sep
Delhi12:25 → 10:1518:2793 min18:260 min15 Sep
Kolkata12:25 → 10:1517:4194 min17:400 min15 Sep
Singapore13:55 → 11:4518:0495 min18:030 min15 Sep
Sydney16:55 → 14:4517:4597 min17:460 min15 Sep
Suva18:50 → 16:4017:5642 min17:560 min15 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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