Ruling · Rathayātrā · 2047

Tuesday 25 June

Boundaryin Luanda, under the Rashtriya Panchang method. A threshold is only 4 min 17 s away. Say “contested”.

Decide it for

8°50′ S 13°14′ E · Africa/Luanda · GeoNames 2240449

The two middays

One ghaṭī is 24 minutes. Madhyāhna is 1 ghaṭikā either side of midday.

Midday of Monday 24 June

Qualifies with 13 of 48 minutes. Not taken.

madhyāhna begins 11:46  12:34 madhyāhna ends
Dvitīyā begins 12:20:38
10:5811:2211:4612:1012:3412:5813:22

13 of 48 minutes covered, the last 13

Midday of Tuesday 25 June

Taken. Both middays qualify; the rule takes the second.

madhyāhna begins 11:46  12:34 madhyāhna ends
Dvitīyā ends 12:38:06
10:5811:2211:4612:1012:3412:5813:22

48 of 48 minutes covered

Dvitīyā presentMadhyāhna, the window the rule readsThe instant the tithi begins or ends

How it was decided

  1. 01

    Aṅga

    Dvitīyā runs from 12:21 on Mon 24 Jun to 12:38 on Tue 25 Jun.

    2047-06-24T11:20:38Z → 2047-06-25T11:38:07Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:46–12:34 on the 24th, 11:46–12:34 on the 25th.

    madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′

  3. 03

    Rule

    Dvitīyā must be present during madhyāhna. It covers 13 of 48 minutes on the 24th and 48 of 48 on the 25th.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102

  4. 04

    Tie-break

    Both middays qualify. Paraviddhā: the second is taken.

    priority: paraviddha → paraviddha · margin 257 s < 300 s

  5. 05

    Ruling

    Rathayātrā, Luanda, 2047: Tuesday 25 June.

    confidence: boundary (margin)

Say it like this

In Luanda, Rathayātrā 2047 falls on Tuesday 25 June. Dvitīyā runs from 12:21 on Mon 24 Jun to 12:38 on Tue 25 Jun and covers all of madhyāhna that midday. It also reaches the previous midday for 13 minutes; by the rule the second midday is taken. It is 4 min 17 s from a threshold: treat the date as contested.

ahargana.org/luanda/festivals/2047/rathayatra · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 25 Jun
Ahargaṇa, classicalDisc centre, no refractionTue 25 Jun
compat-drikpanchangComparison profileTue 25 Jun
No institution has a recorded ruling for Luanda.

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

The rule, as data

/rules/rathayatra · ruleset 2026.3-draft

Month
Āṣāḍha, amānta
Pakṣa · aṅga
Śukla · Dvitīyā
Kāla
Madhyāhna
Priority
Paraviddhā
Tie-break
Second day
Reference
CRC 1955, p. 102

“S 2 Rathayatra (paraviddha, special when combined with naksatra 'Pusya')” Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102. The row calls the day special with Puṣya nakṣatra; the nakṣatra is not tested.

The same rule, elsewhere

Twelve places, west to east. Local clock times.

PlaceDvitīyāMadhyāhna 24thCoveredMadhyāhna 25thCoveredRuled
Los Angeles04:21 → 04:3812:3248 min12:320 min24 Jun
Chicago06:21 → 06:3812:2948 min12:290 min24 Jun
Jersey City07:21 → 07:3812:3548 min12:350 min24 Jun
Port of Spain07:21 → 07:3811:4548 min11:450 min24 Jun
London12:21 → 12:3812:3948 min12:390 min24 Jun
Durban13:21 → 13:3811:340 min11:3548 min25 Jun
Dubai15:21 → 15:3811:570 min11:5748 min25 Jun
Delhi16:51 → 17:0812:000 min12:0048 min25 Jun
Kolkata16:51 → 17:0811:150 min11:1548 min25 Jun
Singapore19:21 → 19:3812:430 min12:4348 min25 Jun
Sydney21:21 → 21:3811:340 min11:3448 min25 Jun
Suva23:21 → 23:3811:450 min11:4548 min25 Jun
Profile · tradition
pac-rp@2026.1 · smarta
Rule
rathayatra@2026.3-draft
Engine · kernel
0.1.0 · de440 7eef…ea74
Boundary margin
300 s

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