Ruling · Jitāṣṭamī (Jitiya) · 2023

Friday 6 October

Determinatein Tehran, under the Rashtriya Panchang method. Clear of every threshold by 554 minutes.

Decide it for

TehranDelhiKolkataSingaporeSydneyJersey City

35°42′ N 51°25′ E · Asia/Tehran · GeoNames 112931

The two evenings

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

Evening of Thursday 5 October

Aṣṭamī is absent from pradoṣa. Not taken.

17:43 sunsetpradoṣa ends 19:22
17:1917:4318:0718:3118:5519:1919:43

0 of 99 minutes covered

Evening of Friday 6 October

Taken. The only evening Aṣṭamī reaches.

17:41 sunsetpradoṣa ends 19:20
17:1717:4118:0518:2918:5319:1719:41

99 of 99 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 04:35 on Fri 6 Oct to 06:09 on Sat 7 Oct.

    2023-10-06T01:05:29Z → 2023-10-07T02:38:56Z

  2. 02

    Kāla

    Pradoṣa is 2 muhūrtas after sunset: 17:43–19:22 on the 5th, 17:41–19:20 on the 6th.

    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 99 minutes on the 5th and 99 of 99 on the 6th.

    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 33235 s

  5. 05

    Ruling

    Jitāṣṭamī, Tehran, 2023: Friday 6 October.

    confidence: determinate

Say it like this

In Tehran, Jitāṣṭamī (Jitiya) 2023 falls on Friday 6 October. Aṣṭamī runs from 04:35 on Fri 6 Oct to 06:09 on Sat 7 Oct and covers all of pradoṣa that evening.

ahargana.org/tehran/festivals/2023/jitashtami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingFri 6 Oct
Ahargaṇa, classicalDisc centre, no refractionFri 6 Oct
compat-drikpanchangComparison profileFri 6 Oct
No institution has a recorded ruling for Tehran.

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 6thCoveredSunset 7thCoveredRuled
Los Angeles18:05 → 19:3918:3069 min18:290 min5 Oct
Chicago20:05 → 21:3918:24100 min18:220 min6 Oct
Jersey City21:05 → 22:3918:30100 min18:290 min6 Oct
Port of Spain21:05 → 22:3917:5396 min17:530 min6 Oct
London02:05 → 03:3918:27102 min18:250 min6 Oct
Durban03:05 → 04:3918:0092 min18:000 min6 Oct
Dubai05:05 → 06:3918:0198 min18:000 min6 Oct
Delhi06:35 → 08:0918:0298 min18:000 min6 Oct
Kolkata06:35 → 08:0917:2097 min17:190 min6 Oct
Singapore09:05 → 10:3918:5595 min18:550 min6 Oct
Sydney12:05 → 13:3919:0191 min19:020 min6 Oct
Suva13:05 → 14:3918:0493 min18:050 min6 Oct
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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