Ruling · Jitāṣṭamī (Jitiya) · 1986

Friday 26 September

Determinatein Chattogram, under the Rashtriya Panchang method. Clear of every threshold by 42 minutes.

Decide it for

ChattogramDelhiKolkataSingaporeSydneyJersey City

22°20′ N 91°50′ E · Asia/Dhaka · GeoNames 1205733

The two evenings

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

Evening of Thursday 25 September

Aṣṭamī is absent from pradoṣa. Not taken.

17:46 sunsetpradoṣa ends 19:22
17:2217:4618:1018:3418:5819:2219:46

0 of 95 minutes covered

Evening of Friday 26 September

Taken. The only evening Aṣṭamī reaches.

17:45 sunsetpradoṣa ends 19:21
17:2117:4518:0918:3318:5719:2119:45

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 20:04 on Thu 25 Sep to 22:28 on Fri 26 Sep.

    1986-09-25T14:04:14Z → 1986-09-26T16:27:48Z

  2. 02

    Kāla

    Pradoṣa is 2 muhūrtas after sunset: 17:46–19:22 on the 25th, 17:45–19:21 on the 26th.

    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 25th and 96 of 96 on the 26th.

    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 2539 s

  5. 05

    Ruling

    Jitāṣṭamī, Chattogram, 1986: Friday 26 September.

    confidence: determinate

Say it like this

In Chattogram, Jitāṣṭamī (Jitiya) 1986 falls on Friday 26 September. Aṣṭamī runs from 20:04 on Thu 25 Sep to 22:28 on Fri 26 Sep and covers all of pradoṣa that evening.

ahargana.org/chattogram/festivals/1986/jitashtami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingFri 26 Sep
Ahargaṇa, classicalDisc centre, no refractionFri 26 Sep
compat-drikpanchangComparison profileFri 26 Sep
No institution has a recorded ruling for Chattogram.

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 25thCoveredSunset 26thCoveredRuled
Los Angeles07:04 → 09:2818:4596 min18:440 min25 Sep
Chicago09:04 → 11:2818:4396 min18:410 min25 Sep
Jersey City10:04 → 12:2818:4996 min18:470 min25 Sep
Port of Spain10:04 → 12:2818:0095 min17:590 min25 Sep
London15:04 → 17:2818:5296 min18:500 min25 Sep
Durban16:04 → 18:2817:5394 min17:5434 min25 Sep
Dubai18:04 → 20:2818:1296 min18:1196 min26 Sep
Delhi19:34 → 21:5818:1416 min18:1396 min26 Sep
Kolkata19:34 → 21:5817:300 min17:2996 min26 Sep
Singapore22:04 → 00:2818:590 min18:5995 min26 Sep
Sydney00:04 → 02:2817:530 min17:5494 min26 Sep
Suva02:04 → 04:2818:020 min18:0395 min26 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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