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Ruling · 2021 · Colombo

Jitāṣṭamī

Jitiya

Wednesday 29 September2021 · Colombo, Western Province, Sri Lanka

Boundarymargin 14 min

In Colombo, under the Rashtriya Panchang method. Both evenings qualify and the rule does not say which to take.

Decide it forColomboDelhiKolkataSingaporeSydneyJersey City6°56′ N 79°51′ E · Asia/Colombo · GeoNames 1248991

The two evenings प्रदोष

One ghaṭī is 24 minutes

Pradoṣa is 2 muhūrtas after sunset.

Evening of Tuesday 28 September

Qualifies with 81 of 95 minutes. Not taken.

18:03 sunsetpradoṣa ends 19:39
Aṣṭamī begins 18:17:11
17:3918:0318:2718:5119:1519:3920:03

81 of 95 minutes covered, the last 81

Evening of Wednesday 29 September

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

18:03 sunsetpradoṣa ends 19:38
17:3918:0318:2718:5119:1519:3920:03

95 of 95 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 18:17 on Tue 28 Sep to 20:30 on Wed 29 Sep.

    2021-09-28T12:47:12Z → 2021-09-29T15:00:07Z
  2. Step 2, Kāla

    Pradoṣa is 2 muhūrtas after sunset: 18:03–19:39 on the 28th, 18:03–19:38 on the 29th.

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

    Aṣṭamī must be present during pradoṣa. It covers 81 of 95 minutes on the 28th and 95 of 95 on the 29th.

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

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

    priority: unstated → greater-coverage · margin 838 s
  5. Step 5, Ruling

    Jitāṣṭamī, Colombo, 2021: Wednesday 29 September.

    confidence: boundary (tie-break-unstated)

Say it like this

In Colombo, Jitāṣṭamī (Jitiya) 2021 falls on Wednesday 29 September. Aṣṭamī runs from 18:17 on Tue 28 Sep to 20:30 on Wed 29 Sep and covers all of pradoṣa that evening. It also reaches the previous evening for 81 minutes; the rule does not say which to take, and the one covered longer is ruled. The rule does not settle this date cleanly.

ahargana.org/colombo/festivals/2021/jitashtamipac-rp@2026.1

Who says what

never edited to agree

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 29 Sep
Ahargaṇa, classicalDisc centre, no refractionWed 29 Sep
compat-drikpanchangComparison profileWed 29 Sep
No institution has a recorded ruling for Colombo.

Institutional rulings are recorded with a source address, and are never edited to agree.

The rule, as data

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 28thCoveredSunset 29thCoveredRuled
Los Angeles05:47 → 08:0018:4197 min18:390 min28 Sep
Chicago07:47 → 10:0018:3797 min18:350 min28 Sep
Jersey City08:47 → 11:0018:4397 min18:410 min28 Sep
Port of Spain08:47 → 11:0017:5896 min17:570 min28 Sep
London13:47 → 16:0018:4498 min18:420 min28 Sep
Durban14:47 → 17:0017:5594 min17:560 min28 Sep
Dubai16:47 → 19:0018:0996 min18:0753 min28 Sep
Delhi18:17 → 20:3018:1090 min18:0997 min29 Sep
Kolkata18:17 → 20:3017:2746 min17:2696 min29 Sep
Singapore20:47 → 23:0018:580 min18:5895 min29 Sep
Sydney22:47 → 01:0017:550 min17:5693 min29 Sep
Suva00:47 → 03:0018:030 min18:0394 min29 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