Ruling · Jitāṣṭamī (Jitiya) · 2000

Wednesday 20 September

Boundaryin Coimbatore, under the Rashtriya Panchang method. Aṣṭamī reaches pradoṣa on neither day and the rule does not say what then. Say “contested”.

Decide it for

CoimbatoreDelhiKolkataSingaporeSydneyJersey City

11°00′ N 76°58′ E · Asia/Kolkata · GeoNames 1273865

The two evenings

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

Evening of Wednesday 20 September

Taken. Aṣṭamī reaches neither evening; this is the day it falls on.

18:19 sunsetpradoṣa ends 19:54
Aṣṭamī begins 19:54:19
17:5518:1918:4319:0719:3119:5520:19

0 of 95 minutes covered

Evening of Thursday 21 September

Aṣṭamī is absent from pradoṣa. Not taken.

18:19 sunsetpradoṣa ends 19:54
Aṣṭamī ends 17:58:51
17:5518:1918:4319:0719:3119:5520:19

0 of 95 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 19:54 on Wed 20 Sep to 17:59 on Thu 21 Sep.

    2000-09-20T14:24:19Z → 2000-09-21T12:28:52Z

  2. 02

    Kāla

    Pradoṣa is 2 muhūrtas after sunset: 18:19–19:54 on the 20th, 18:19–19:54 on the 21st.

    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 95 minutes on the 20th and 0 of 95 on the 21st.

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

  4. 04

    Tie-break

    Neither evening qualifies. The day the tithi falls on is taken.

    priority: unstated → tithi-day · margin 6 s < 300 s

  5. 05

    Ruling

    Jitāṣṭamī, Coimbatore, 2000: Wednesday 20 September.

    confidence: boundary (margin, absent-unstated)

Say it like this

In Coimbatore, Jitāṣṭamī (Jitiya) 2000 falls on Wednesday 20 September. Aṣṭamī runs from 19:54 on Wed 20 Sep to 17:59 on Thu 21 Sep, and reaches pradoṣa on neither day. It is 0 min 06 s from a threshold: treat the date as contested.

ahargana.org/coimbatore/festivals/2000/jitashtami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 20 Sep
Ahargaṇa, classicalDisc centre, no refractionWed 20 Sep
compat-drikpanchangComparison profileWed 20 Sep
No institution has a recorded ruling for Coimbatore.

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 20thCoveredSunset 21stCoveredRuled
Los Angeles07:24 → 05:2918:5295 min18:500 min20 Sep
Chicago09:24 → 07:2918:5094 min18:490 min20 Sep
Jersey City10:24 → 08:2918:5694 min18:540 min20 Sep
Port of Spain10:24 → 08:2918:0395 min18:020 min20 Sep
London15:24 → 13:2919:0394 min19:000 min20 Sep
Durban16:24 → 14:2917:5195 min17:510 min20 Sep
Dubai18:24 → 16:2918:1787 min18:160 min20 Sep
Delhi19:54 → 17:5918:200 min18:190 min20 Sep
Kolkata19:54 → 17:5917:350 min17:3425 min21 Sep
Singapore22:24 → 20:2919:010 min19:0188 min21 Sep
Sydney01:24 → 23:2918:500 min18:5095 min21 Sep
Suva02:24 → 00:2918:020 min18:0295 min21 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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