Ruling · Jitāṣṭamī (Jitiya) · 1961

Sunday 1 October

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

Decide it for

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 Saturday 30 September

Qualifies with 83 of 97 minutes. Not taken.

18:14 sunsetpradoṣa ends 19:51
Aṣṭamī begins 18:28:08
17:5018:1418:3819:0219:2619:5020:14

83 of 97 minutes covered, the last 83

Evening of Sunday 1 October

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

18:13 sunsetpradoṣa ends 19:50
Aṣṭamī ends 20:01:49
17:4918:1318:3719:0119:2519:4920:13

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 18:28 on Sat 30 Sep to 20:02 on Sun 1 Oct.

    1961-10-01T01:28:09Z → 1961-10-02T03:01:50Z

  2. 02

    Kāla

    Pradoṣa is 2 muhūrtas after sunset: 18:14–19:51 on the 30th, 18:13–19:50 on the 1st.

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

  3. 03

    Rule

    Aṣṭamī must be present during pradoṣa. It covers 83 of 97 minutes on the 30th and 97 of 97 on the 1st.

    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 709 s

  5. 05

    Ruling

    Jitāṣṭamī, Phoenix, 1961: Sunday 1 October.

    confidence: boundary (tie-break-unstated)

Say it like this

In Phoenix, Jitāṣṭamī (Jitiya) 1961 falls on Sunday 1 October. Aṣṭamī runs from 18:28 on Sat 30 Sep to 20:02 on Sun 1 Oct and covers all of pradoṣa that evening. It also reaches the previous evening for 83 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/1961/jitashtami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSun 1 Oct
Ahargaṇa, classicalDisc centre, no refractionSun 1 Oct
compat-drikpanchangComparison profileSat 30 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 1stCoveredSunset 2ndCoveredRuled
Los Angeles17:28 → 19:0217:3785 min17:360 min30 Sep
Chicago20:28 → 22:0218:3298 min18:310 min1 Oct
Jersey City21:28 → 23:0218:3898 min18:370 min1 Oct
Port of Spain21:28 → 23:0217:5696 min17:560 min1 Oct
London02:28 → 04:0218:3999 min18:360 min1 Oct
Durban03:28 → 05:0217:5793 min17:570 min1 Oct
Dubai05:28 → 07:0218:0697 min18:050 min1 Oct
Delhi06:58 → 08:3218:0797 min18:060 min1 Oct
Kolkata06:58 → 08:3217:2497 min17:230 min1 Oct
Singapore08:58 → 10:3218:2795 min18:270 min1 Oct
Sydney11:28 → 13:0217:5793 min17:580 min1 Oct
Suva13:28 → 15:0218:0394 min18:040 min1 Oct
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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