September 1971 · each Moon as it stands at sunriseBhādrapada Śukla to Āśvina ŚuklaThe month ›

Ruling · 1971 · Chicago

Jitāṣṭamī

Jitiya

Saturday 11 September1971 · Chicago, Illinois, United States

Determinatemargin 260 min

In Chicago, under the Rashtriya Panchang method. Clear of every threshold by 260 minutes.

Decide it forChicagoDelhiKolkataSingaporeSydneyJersey City41°51′ N 87°39′ W · America/Chicago · GeoNames 4887398

The two evenings प्रदोष

One ghaṭī is 24 minutes

Pradoṣa is 2 muhūrtas after sunset.

Evening of Friday 10 September

Aṣṭamī is absent from pradoṣa. Not taken.

19:09 sunsetpradoṣa ends 20:40
18:4519:0919:3319:5720:2120:4521:09

0 of 90 minutes covered

Evening of Saturday 11 September

Taken. The only evening Aṣṭamī reaches.

19:08 sunsetpradoṣa ends 20:38
18:4419:0819:3219:5620:2020:4421:08

91 of 91 minutes covered

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

How it was decided निर्णय

  1. Step 1, Aṅga

    Aṣṭamī runs from 01:59 on Sat 11 Sep to 00:58 on Sun 12 Sep.

    1971-09-11T06:58:57Z → 1971-09-12T05:57:51Z
  2. Step 2, Kāla

    Pradoṣa is 2 muhūrtas after sunset: 19:09–20:40 on the 10th, 19:08–20:38 on the 11th.

    pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′
  3. Step 3, Rule

    Aṣṭamī must be present during pradoṣa. It covers 0 of 90 minutes on the 10th and 91 of 91 on the 11th.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103
  4. Step 4, Tie-break

    Only one evening qualifies. No tie-break is needed.

    priority: unstated → only-day · margin 15575 s
  5. Step 5, Ruling

    Jitāṣṭamī, Chicago, 1971: Saturday 11 September.

    confidence: determinate

Say it like this

In Chicago, Jitāṣṭamī (Jitiya) 1971 falls on Saturday 11 September. Aṣṭamī runs from 01:59 on Sat 11 Sep to 00:58 on Sun 12 Sep and covers all of pradoṣa that evening.

ahargana.org/chicago/festivals/1971/jitashtamipac-rp@2026.1

Who says what

never edited to agree

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 11 Sep
Ahargaṇa, classicalDisc centre, no refractionSat 11 Sep
compat-drikpanchangComparison profileSat 11 Sep
No institution has a recorded ruling for Chicago.

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 clocks

PlaceAṣṭamīSunset 11thCoveredSunset 12thCoveredRuled
Los Angeles23:59 → 22:5819:0692 min19:040 min11 Sep
Chicago01:59 → 00:5819:0891 min19:060 min11 Sep
Jersey City02:59 → 01:5819:1391 min19:110 min11 Sep
Port of Spain02:59 → 01:5818:0994 min18:090 min11 Sep
London07:59 → 06:5819:2689 min19:230 min11 Sep
Durban08:59 → 07:5817:4698 min17:460 min11 Sep
Dubai10:59 → 09:5818:2893 min18:270 min11 Sep
Delhi12:29 → 11:2818:3292 min18:310 min11 Sep
Kolkata12:29 → 11:2817:4593 min17:440 min11 Sep
Singapore14:29 → 13:2818:3595 min18:350 min11 Sep
Sydney16:59 → 15:5817:4398 min17:440 min11 Sep
Suva18:59 → 17:5818:0038 min18:000 min11 Sep
This ruling as JSON · ICS
Profile · tradition
pac-rp@2026.1 · smarta
Rule
jitashtami@2026.3-draft
Engine · kernel
0.1.0 · de440 7eef…ea74
Boundary margin
300 s