Ruling · Jitāṣṭamī (Jitiya) · 2047

Thursday 12 September

Determinatein Tehran, under the Rashtriya Panchang method. Clear of every threshold by 355 minutes.

Decide it for

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 Wednesday 11 September

Aṣṭamī is absent from pradoṣa. Not taken.

18:18 sunsetpradoṣa ends 19:49
17:5418:1818:4219:0619:3019:5420:18

0 of 92 minutes covered

Evening of Thursday 12 September

Taken. The only evening Aṣṭamī reaches.

18:16 sunsetpradoṣa ends 19:48
17:5218:1618:4019:0419:2819:5220:16

92 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 01:44 on Thu 12 Sep to 03:46 on Fri 13 Sep.

    2047-09-11T22:13:53Z → 2047-09-13T00:15:52Z

  2. 02

    Kāla

    Pradoṣa is 2 muhūrtas after sunset: 18:18–19:49 on the 11th, 18:16–19:48 on the 12th.

    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 92 minutes on the 11th and 92 of 92 on the 12th.

    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 21280 s

  5. 05

    Ruling

    Jitāṣṭamī, Tehran, 2047: Thursday 12 September.

    confidence: determinate

Say it like this

In Tehran, Jitāṣṭamī (Jitiya) 2047 falls on Thursday 12 September. Aṣṭamī runs from 01:44 on Thu 12 Sep to 03:46 on Fri 13 Sep and covers all of pradoṣa that evening.

ahargana.org/tehran/festivals/2047/jitashtami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 12 Sep
Ahargaṇa, classicalDisc centre, no refractionThu 12 Sep
compat-drikpanchangComparison profileThu 12 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 11thCoveredSunset 13thCoveredRuled
Los Angeles15:14 → 17:1619:0592 min19:020 min11 Sep
Chicago17:14 → 19:1619:0791 min19:030 min11 Sep
Jersey City18:14 → 20:1619:1291 min19:080 min11 Sep
Port of Spain18:14 → 20:1618:0989 min18:080 min12 Sep
London23:14 → 01:1619:240 min19:200 min12 Sep
Durban00:14 → 02:1617:460 min17:470 min12 Sep
Dubai02:14 → 04:1618:270 min18:250 min12 Sep
Delhi03:44 → 05:4618:310 min18:290 min12 Sep
Kolkata03:44 → 05:4617:440 min17:420 min12 Sep
Singapore06:14 → 08:1619:050 min19:040 min12 Sep
Sydney08:14 → 10:1617:440 min17:450 min12 Sep
Suva10:14 → 12:1618:000 min18:010 min12 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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