Ruling · Jitāṣṭamī (Jitiya) · 2001

Monday 10 September

Determinatein Tehran, under the Rashtriya Panchang method. Clear of every threshold by 455 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 Monday 10 September

Taken. The only evening Aṣṭamī reaches.

19:19 sunsetpradoṣa ends 20:50
18:5519:1919:4320:0720:3120:5521:19

91 of 91 minutes covered

Evening of Tuesday 11 September

Aṣṭamī is absent from pradoṣa. Not taken.

19:17 sunsetpradoṣa ends 20:49
18:5319:1719:4120:0520:2920:5321:17

0 of 92 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 11:43 on Mon 10 Sep to 11:05 on Tue 11 Sep.

    2001-09-10T07:13:28Z → 2001-09-11T06:35:25Z

  2. 02

    Kāla

    Pradoṣa is 2 muhūrtas after sunset: 19:19–20:50 on the 10th, 19:17–20:49 on the 11th.

    pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′

  3. 03

    Rule

    Aṣṭamī must be present during pradoṣa. It covers 91 of 91 minutes on the 10th and 0 of 92 on the 11th.

    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 27319 s

  5. 05

    Ruling

    Jitāṣṭamī, Tehran, 2001: Monday 10 September.

    confidence: determinate

Say it like this

In Tehran, Jitāṣṭamī (Jitiya) 2001 falls on Monday 10 September. Aṣṭamī runs from 11:43 on Mon 10 Sep to 11:05 on Tue 11 Sep and covers all of pradoṣa that evening.

ahargana.org/tehran/festivals/2001/jitashtami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingMon 10 Sep
Ahargaṇa, classicalDisc centre, no refractionMon 10 Sep
compat-drikpanchangComparison profileMon 10 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 10thCoveredSunset 11thCoveredRuled
Los Angeles00:13 → 23:3519:0692 min19:050 min10 Sep
Chicago02:13 → 01:3519:0891 min19:060 min10 Sep
Jersey City03:13 → 02:3519:1391 min19:120 min10 Sep
Port of Spain03:13 → 02:3518:1094 min18:090 min10 Sep
London08:13 → 07:3519:2688 min19:240 min10 Sep
Durban09:13 → 08:3517:4598 min17:460 min10 Sep
Dubai11:13 → 10:3518:2893 min18:270 min10 Sep
Delhi12:43 → 12:0518:3292 min18:310 min10 Sep
Kolkata12:43 → 12:0517:4593 min17:440 min10 Sep
Singapore15:13 → 14:3519:0595 min19:050 min10 Sep
Sydney17:13 → 16:3517:4398 min17:430 min10 Sep
Suva19:13 → 18:3518:0023 min18:0035 min11 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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