Ruling · Jitāṣṭamī (Jitiya) · 1935

Thursday 19 September

Boundaryin Phoenix, under the Rashtriya Panchang method. Both evenings qualify and the rule does not say which to take. Say “contested”.

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 Wednesday 18 September

Qualifies with 45 of 94 minutes. Not taken.

18:31 sunsetpradoṣa ends 20:05
Aṣṭamī begins 19:19:42
18:0718:3118:5519:1919:4320:0720:31

45 of 94 minutes covered, the last 45

Evening of Thursday 19 September

Taken. Both evenings qualify; the rule is silent, and this one is covered longer.

18:30 sunsetpradoṣa ends 20:04
Aṣṭamī ends 19:38:04
18:0618:3018:5419:1819:4220:0620:30

68 of 94 minutes covered, the first 68

Aṣṭamī presentPradoṣa, the window the rule readsThe instant the tithi begins or ends

How it was decided

  1. 01

    Aṅga

    Aṣṭamī runs from 19:20 on Wed 18 Sep to 19:38 on Thu 19 Sep.

    1935-09-19T02:19:43Z → 1935-09-20T02:38:05Z

  2. 02

    Kāla

    Pradoṣa is 2 muhūrtas after sunset: 18:31–20:05 on the 18th, 18:30–20:04 on the 19th.

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

  3. 03

    Rule

    Aṣṭamī must be present during pradoṣa. It covers 45 of 94 minutes on the 18th and 68 of 94 on the 19th.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103

  4. 04

    Tie-break

    Both evenings qualify and the rule marks neither. The one covered longer is ruled, as a boundary.

    priority: unstated → greater-coverage · margin 1548 s

  5. 05

    Ruling

    Jitāṣṭamī, Phoenix, 1935: Thursday 19 September.

    confidence: boundary (tie-break-unstated)

Say it like this

In Phoenix, Jitāṣṭamī (Jitiya) 1935 falls on Thursday 19 September. Aṣṭamī runs from 19:20 on Wed 18 Sep to 19:38 on Thu 19 Sep and covers 68 of 94 minutes of pradoṣa that evening. It also reaches the previous evening for 45 minutes; the rule does not say which to take, and the one covered longer is ruled: treat the date as contested.

ahargana.org/phoenix/festivals/1935/jitashtami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 19 Sep
Ahargaṇa, classicalDisc centre, no refractionThu 19 Sep
compat-drikpanchangComparison profileWed 18 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 19thCoveredSunset 20thCoveredRuled
Los Angeles18:20 → 18:3817:5543 min17:530 min18 Sep
Chicago21:20 → 21:3818:5493 min18:520 min19 Sep
Jersey City22:20 → 22:3819:0094 min18:580 min19 Sep
Port of Spain22:20 → 22:3818:0495 min18:040 min19 Sep
London03:20 → 03:3819:0893 min19:050 min19 Sep
Durban04:20 → 04:3817:5096 min17:500 min19 Sep
Dubai06:20 → 06:3818:1994 min18:180 min19 Sep
Delhi07:50 → 08:0818:2294 min18:210 min19 Sep
Kolkata07:50 → 08:0817:3794 min17:360 min19 Sep
Singapore09:40 → 09:5818:2295 min18:220 min19 Sep
Sydney12:20 → 12:3817:4896 min17:490 min19 Sep
Suva14:20 → 14:3818:0196 min18:010 min19 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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