Ruling · Jitāṣṭamī (Jitiya) · 2097

Saturday 28 September

Determinatein Tehran, under the Rashtriya Panchang method. Clear of every threshold by 516 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 Friday 27 September

Aṣṭamī is absent from pradoṣa. Not taken.

17:53 sunsetpradoṣa ends 19:30
17:2917:5318:1718:4119:0519:2919:53

0 of 97 minutes covered

Evening of Saturday 28 September

Taken. The only evening Aṣṭamī reaches.

17:52 sunsetpradoṣa ends 19:29
17:2817:5218:1618:4019:0419:2819:52

97 of 97 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 06:16 on Sat 28 Sep to 04:04 on Sun 29 Sep.

    2097-09-28T02:46:25Z → 2097-09-29T00:34:20Z

  2. 02

    Kāla

    Pradoṣa is 2 muhūrtas after sunset: 17:53–19:30 on the 27th, 17:52–19:29 on the 28th.

    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 97 minutes on the 27th and 97 of 97 on the 28th.

    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 30940 s

  5. 05

    Ruling

    Jitāṣṭamī, Tehran, 2097: Saturday 28 September.

    confidence: determinate

Say it like this

In Tehran, Jitāṣṭamī (Jitiya) 2097 falls on Saturday 28 September. Aṣṭamī runs from 06:16 on Sat 28 Sep to 04:04 on Sun 29 Sep and covers all of pradoṣa that evening.

ahargana.org/tehran/festivals/2097/jitashtami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 28 Sep
Ahargaṇa, classicalDisc centre, no refractionSat 28 Sep
compat-drikpanchangComparison profileSat 28 Sep
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 28thCoveredSunset 29thCoveredRuled
Los Angeles19:46 → 17:3418:400 min18:390 min27 Sep
Chicago21:46 → 19:3418:3658 min18:340 min28 Sep
Jersey City22:46 → 20:3418:4297 min18:400 min28 Sep
Port of Spain22:46 → 20:3417:5896 min17:570 min28 Sep
London03:46 → 01:3418:4398 min18:410 min28 Sep
Durban04:46 → 02:3417:5693 min17:570 min28 Sep
Dubai06:46 → 04:3418:0896 min18:070 min28 Sep
Delhi08:16 → 06:0418:1097 min18:090 min28 Sep
Kolkata08:16 → 06:0417:2796 min17:260 min28 Sep
Singapore10:46 → 08:3418:5895 min18:580 min28 Sep
Sydney12:46 → 10:3417:5693 min17:570 min28 Sep
Suva14:46 → 12:3418:0494 min18:040 min28 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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