Ruling · Jitāṣṭamī (Jitiya) · 2079

Monday 18 September

Determinatein Chattogram, under the Rashtriya Panchang method. Clear of every threshold by 168 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 Sunday 17 September

Aṣṭamī is absent from pradoṣa. Not taken.

17:54 sunsetpradoṣa ends 19:28
17:3017:5418:1818:4219:0619:3019:54

0 of 94 minutes covered

Evening of Monday 18 September

Taken. The only evening Aṣṭamī reaches.

17:53 sunsetpradoṣa ends 19:28
17:2917:5318:1718:4119:0519:2919:53

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 00:29 on Mon 18 Sep to 22:16 on Mon 18 Sep.

    2079-09-17T18:29:17Z → 2079-09-18T16:15:51Z

  2. 02

    Kāla

    Pradoṣa is 2 muhūrtas after sunset: 17:54–19:28 on the 17th, 17:53–19:28 on the 18th.

    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 94 minutes on the 17th and 94 of 94 on the 18th.

    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 10100 s

  5. 05

    Ruling

    Jitāṣṭamī, Chattogram, 2079: Monday 18 September.

    confidence: determinate

Say it like this

In Chattogram, Jitāṣṭamī (Jitiya) 2079 falls on Monday 18 September. Aṣṭamī runs from 00:29 on Mon 18 Sep to 22:16 on Mon 18 Sep and covers all of pradoṣa that evening.

ahargana.org/chattogram/festivals/2079/jitashtami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingMon 18 Sep
Ahargaṇa, classicalDisc centre, no refractionMon 18 Sep
compat-drikpanchangComparison profileMon 18 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 17thCoveredSunset 18thCoveredRuled
Los Angeles11:29 → 09:1618:5694 min18:550 min17 Sep
Chicago13:29 → 11:1618:5693 min18:540 min17 Sep
Jersey City14:29 → 12:1619:0193 min19:000 min17 Sep
Port of Spain14:29 → 12:1618:0595 min18:050 min17 Sep
London19:29 → 17:1619:1073 min19:080 min17 Sep
Durban20:29 → 18:1617:490 min17:5026 min18 Sep
Dubai22:29 → 20:1618:210 min18:2094 min18 Sep
Delhi23:59 → 21:4618:240 min18:2394 min18 Sep
Kolkata23:59 → 21:4617:380 min17:3794 min18 Sep
Singapore02:29 → 00:1619:030 min19:0295 min18 Sep
Sydney04:29 → 02:1617:480 min17:4996 min18 Sep
Suva06:29 → 04:1618:020 min18:0296 min18 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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