Ruling · Rathayātrā · 2031

Sunday 22 June

Determinatein Daegu, under the Rashtriya Panchang method. Clear of every threshold by 18 minutes.

Decide it for

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

The two middays

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

Midday of Saturday 21 June

Qualifies with 48 of 48 minutes. Not taken.

madhyāhna begins 12:03  12:51 madhyāhna ends
11:1511:3912:0312:2712:5113:1513:39

48 of 48 minutes covered

Midday of Sunday 22 June

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

madhyāhna begins 12:04  12:52 madhyāhna ends
Dvitīyā ends 12:21:20
11:1611:4012:0412:2812:5213:1613:40

18 of 48 minutes covered, the first 18

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

How it was decided

  1. 01

    Aṅga

    Dvitīyā runs from 09:52 on Sat 21 Jun to 12:21 on Sun 22 Jun.

    2031-06-21T00:52:24Z → 2031-06-22T03:21:21Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 12:03–12:51 on the 21st, 12:04–12:52 on the 22nd.

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

  3. 03

    Rule

    Dvitīyā must be present during madhyāhna. It covers 48 of 48 minutes on the 21st and 18 of 48 on the 22nd.

    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 1069 s

  5. 05

    Ruling

    Rathayātrā, Daegu, 2031: Sunday 22 June.

    confidence: determinate

Say it like this

In Daegu, Rathayātrā 2031 falls on Sunday 22 June. Dvitīyā runs from 09:52 on Sat 21 Jun to 12:21 on Sun 22 Jun and covers 18 of 48 minutes of madhyāhna that midday. It also reaches the previous midday for 48 minutes; by the rule the second midday is taken.

ahargana.org/daegu/festivals/2031/rathayatra · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSun 22 Jun
Ahargaṇa, classicalDisc centre, no refractionSun 22 Jun
compat-drikpanchangComparison profileSun 22 Jun
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/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 21stCoveredMadhyāhna 22ndCoveredRuled
Los Angeles17:52 → 20:2112:3148 min12:310 min21 Jun
Chicago19:52 → 22:2112:2848 min12:290 min21 Jun
Jersey City20:52 → 23:2112:3448 min12:340 min21 Jun
Port of Spain20:52 → 23:2111:4448 min11:440 min21 Jun
London01:52 → 04:2112:3848 min12:390 min21 Jun
Durban02:52 → 05:2111:3448 min11:340 min21 Jun
Dubai04:52 → 07:2111:5748 min11:570 min21 Jun
Delhi06:22 → 08:5111:5948 min11:590 min21 Jun
Kolkata06:22 → 08:5111:1448 min11:150 min21 Jun
Singapore08:52 → 11:2112:4248 min12:430 min21 Jun
Sydney10:52 → 13:2111:3348 min11:3348 min22 Jun
Suva12:52 → 15:2111:440 min11:4448 min22 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

About Ahargaṇa