Ruling · Jitāṣṭamī (Jitiya) · 2085

Monday 10 September

Boundaryin Daegu, under the Rashtriya Panchang method. A threshold is only 0 min 35 s away. Say “contested”.

Decide it for

DaeguDelhiKolkataSingaporeSydneyJersey City

35°52′ N 128°36′ E · Asia/Seoul · GeoNames 1835329

The two evenings

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

Evening of Monday 10 September

Taken. The only evening Aṣṭamī reaches.

18:40 sunsetpradoṣa ends 20:11
18:1618:4019:0419:2819:5220:1620:40

91 of 91 minutes covered

Evening of Tuesday 11 September

Aṣṭamī is absent from pradoṣa. Not taken.

18:38 sunsetpradoṣa ends 20:10
Aṣṭamī ends 18:37:47
18:1418:3819:0219:2619:5020:1420:38

0 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 17:52 on Mon 10 Sep to 18:38 on Tue 11 Sep.

    2085-09-10T08:52:08Z → 2085-09-11T09:37:47Z

  2. 02

    Kāla

    Pradoṣa is 2 muhūrtas after sunset: 18:40–20:11 on the 10th, 18:38–20:10 on the 11th.

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

  3. 03

    Rule

    Aṣṭamī must be present during pradoṣa. It covers 91 of 91 minutes on the 10th and 0 of 92 on the 11th.

    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 35 s < 300 s

  5. 05

    Ruling

    Jitāṣṭamī, Daegu, 2085: Monday 10 September.

    confidence: boundary (margin)

Say it like this

In Daegu, Jitāṣṭamī (Jitiya) 2085 falls on Monday 10 September. Aṣṭamī runs from 17:52 on Mon 10 Sep to 18:38 on Tue 11 Sep and covers all of pradoṣa that evening. It is 0 min 35 s from a threshold: treat the date as contested.

ahargana.org/daegu/festivals/2085/jitashtami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingMon 10 Sep
Ahargaṇa, classicalDisc centre, no refractionMon 10 Sep
compat-drikpanchangComparison profileMon 10 Sep
No institution has a recorded ruling for Daegu.

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 10thCoveredSunset 11thCoveredRuled
Los Angeles01:52 → 02:3819:0592 min19:040 min10 Sep
Chicago03:52 → 04:3819:0791 min19:060 min10 Sep
Jersey City04:52 → 05:3819:1291 min19:110 min10 Sep
Port of Spain04:52 → 05:3818:0994 min18:090 min10 Sep
London09:52 → 10:3819:2589 min19:230 min10 Sep
Durban10:52 → 11:3817:4698 min17:470 min10 Sep
Dubai12:52 → 13:3818:2893 min18:270 min10 Sep
Delhi14:22 → 15:0818:3292 min18:300 min10 Sep
Kolkata14:22 → 15:0817:4593 min17:440 min10 Sep
Singapore16:52 → 17:3819:0595 min19:050 min10 Sep
Sydney18:52 → 19:3817:4430 min17:4498 min11 Sep
Suva20:52 → 21:3818:010 min18:0197 min11 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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