Ruling · Rathayātrā · 2021

Monday 12 July

Determinatein Osaka, under the Rashtriya Panchang method. Clear of every threshold by 10 minutes.

Decide it for

OsakaDelhiKolkataSingaporeSydneyJersey City

34°42′ N 135°30′ E · Asia/Tokyo · GeoNames 1853909

The two middays

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

Midday of Sunday 11 July

Qualifies with 48 of 48 minutes. Not taken.

madhyāhna begins 11:39  12:27 madhyāhna ends
Dvitīyā begins 11:17:39
10:5111:1511:3912:0312:2712:5113:15

48 of 48 minutes covered

Midday of Monday 12 July

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

madhyāhna begins 11:39  12:27 madhyāhna ends
Dvitīyā ends 11:49:57
10:5111:1511:3912:0312:2712:5113:15

10 of 48 minutes covered, the first 10

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

How it was decided

  1. 01

    Aṅga

    Dvitīyā runs from 11:18 on Sun 11 Jul to 11:50 on Mon 12 Jul.

    2021-07-11T02:17:39Z → 2021-07-12T02:49:58Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:39–12:27 on the 11th, 11:39–12:27 on the 12th.

    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 11th and 10 of 48 on the 12th.

    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 628 s

  5. 05

    Ruling

    Rathayātrā, Osaka, 2021: Monday 12 July.

    confidence: determinate

Say it like this

In Osaka, Rathayātrā 2021 falls on Monday 12 July. Dvitīyā runs from 11:18 on Sun 11 Jul to 11:50 on Mon 12 Jul and covers 10 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/osaka/festivals/2021/rathayatra · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingMon 12 Jul
Ahargaṇa, classicalDisc centre, no refractionMon 12 Jul
compat-drikpanchangComparison profileMon 12 Jul
No institution has a recorded ruling for Osaka.

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 11thCoveredMadhyāhna 12thCoveredRuled
Los Angeles19:18 → 19:5012:3448 min12:350 min11 Jul
Chicago21:18 → 21:5012:3248 min12:320 min11 Jul
Jersey City22:18 → 22:5012:3848 min12:380 min11 Jul
Port of Spain22:18 → 22:5011:4848 min11:480 min11 Jul
London03:18 → 03:5012:4248 min12:420 min11 Jul
Durban04:18 → 04:5011:3848 min11:380 min11 Jul
Dubai06:18 → 06:5012:0048 min12:000 min11 Jul
Delhi07:48 → 08:2012:0348 min12:030 min11 Jul
Kolkata07:48 → 08:2011:1848 min11:180 min11 Jul
Singapore10:18 → 10:5012:4648 min12:460 min11 Jul
Sydney12:18 → 12:5011:377 min11:3748 min12 Jul
Suva14:18 → 14:5011:480 min11:4848 min12 Jul
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