Ruling · Jitāṣṭamī (Jitiya) · 1900

Saturday 15 September

Determinatein Phoenix, under the Rashtriya Panchang method. Clear of every threshold by 342 minutes.

Decide it for

PhoenixDelhiKolkataSingaporeSydneyJersey City

33°27′ N 112°04′ W · America/Phoenix · GeoNames 5308655

The two evenings

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

Evening of Friday 14 September

Aṣṭamī is absent from pradoṣa. Not taken.

18:36 sunsetpradoṣa ends 20:09
18:1218:3619:0019:2419:4820:1220:36

0 of 93 minutes covered

Evening of Saturday 15 September

Taken. The only evening Aṣṭamī reaches.

18:35 sunsetpradoṣa ends 20:08
18:1118:3518:5919:2319:4720:1120:35

93 of 93 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 02:15 on Sat 15 Sep to 01:50 on Sun 16 Sep.

    1900-09-15T09:14:49Z → 1900-09-16T08:50:04Z

  2. 02

    Kāla

    Pradoṣa is 2 muhūrtas after sunset: 18:36–20:09 on the 14th, 18:35–20:08 on the 15th.

    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 93 minutes on the 14th and 93 of 93 on the 15th.

    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 20539 s

  5. 05

    Ruling

    Jitāṣṭamī, Phoenix, 1900: Saturday 15 September.

    confidence: determinate

Say it like this

In Phoenix, Jitāṣṭamī (Jitiya) 1900 falls on Saturday 15 September. Aṣṭamī runs from 02:15 on Sat 15 Sep to 01:50 on Sun 16 Sep and covers all of pradoṣa that evening.

ahargana.org/phoenix/festivals/1900/jitashtami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 15 Sep
Ahargaṇa, classicalDisc centre, no refractionSat 15 Sep
compat-drikpanchangComparison profileSat 15 Sep
No institution has a recorded ruling for Phoenix.

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 15thCoveredSunset 16thCoveredRuled
Los Angeles01:15 → 00:5018:0093 min17:580 min15 Sep
Chicago03:15 → 02:5018:0092 min17:590 min15 Sep
Jersey City04:15 → 03:5018:0692 min18:040 min15 Sep
Port of Spain05:15 → 04:5018:0795 min18:060 min15 Sep
London09:15 → 08:5018:1691 min18:140 min15 Sep
Durban10:45 → 10:2017:1897 min17:180 min15 Sep
Dubai12:56 → 12:3118:0494 min18:030 min15 Sep
Delhi14:36 → 14:1118:1893 min18:160 min15 Sep
Kolkata14:36 → 14:1117:3194 min17:300 min15 Sep
Singapore16:10 → 15:4517:5895 min17:580 min15 Sep
Sydney19:15 → 18:5017:468 min17:4664 min16 Sep
Suva21:10 → 20:4517:560 min17:5696 min16 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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