Ruling · Rathayātrā · 2082

Sunday 28 June

Boundaryin Daqing, under the Rashtriya Panchang method. A threshold is only 1 min 31 s away. Say “contested”.

Decide it for

DaqingDelhiKolkataSingaporeSydneyJersey City

46°35′ N 125°00′ E · Asia/Shanghai · GeoNames 2037860

The two middays

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

Midday of Saturday 27 June

Dvitīyā is absent from madhyāhna. Not taken.

madhyāhna begins 11:19  12:07 madhyāhna ends
Dvitīyā begins 12:55:11
10:3110:5511:1911:4312:0712:3112:55

0 of 48 minutes covered

Midday of Sunday 28 June

Taken. The only midday Dvitīyā reaches.

madhyāhna begins 11:20  12:08 madhyāhna ends
Dvitīyā ends 12:09:08
10:3210:5611:2011:4412:0812:3212:56

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 12:55 on Sat 27 Jun to 12:09 on Sun 28 Jun.

    2082-06-27T04:55:12Z → 2082-06-28T04:09:08Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:19–12:07 on the 27th, 11:20–12:08 on the 28th.

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

  3. 03

    Rule

    Dvitīyā must be present during madhyāhna. It covers 0 of 48 minutes on the 27th and 48 of 48 on the 28th.

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

  4. 04

    Tie-break

    Only one midday qualifies. No tie-break is needed.

    priority: paraviddha → only-day · margin 91 s < 300 s

  5. 05

    Ruling

    Rathayātrā, Daqing, 2082: Sunday 28 June.

    confidence: boundary (margin)

Say it like this

In Daqing, Rathayātrā 2082 falls on Sunday 28 June. Dvitīyā runs from 12:55 on Sat 27 Jun to 12:09 on Sun 28 Jun and covers all of madhyāhna that midday. It is 1 min 31 s from a threshold: treat the date as contested.

ahargana.org/daqing/festivals/2082/rathayatra · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSun 28 Jun
Ahargaṇa, classicalDisc centre, no refractionSun 28 Jun
compat-drikpanchangComparison profileSun 28 Jun
No institution has a recorded ruling for Daqing.

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 27thCoveredMadhyāhna 28thCoveredRuled
Los Angeles21:55 → 21:0912:3348 min12:330 min27 Jun
Chicago23:55 → 23:0912:3048 min12:300 min27 Jun
Jersey City00:55 → 00:0912:3648 min12:360 min27 Jun
Port of Spain00:55 → 00:0911:4648 min11:460 min27 Jun
London05:55 → 05:0912:4048 min12:400 min27 Jun
Durban06:55 → 06:0911:3548 min11:360 min27 Jun
Dubai08:55 → 08:0911:5848 min11:580 min27 Jun
Delhi10:25 → 09:3912:0148 min12:010 min27 Jun
Kolkata10:25 → 09:3911:1648 min11:160 min27 Jun
Singapore12:55 → 12:0912:4437 min12:440 min27 Jun
Sydney14:55 → 14:0911:350 min11:3548 min28 Jun
Suva16:55 → 16:0911:460 min11:4648 min28 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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