Ruling · Rathayātrā · 1987

Sunday 28 June

Determinatein Daqing, under the Rashtriya Panchang method. Clear of every threshold by 226 minutes.

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 12:19  13:07 madhyāhna ends
11:3111:5512:1912:4313:0713:3113:55

0 of 48 minutes covered

Midday of Sunday 28 June

Taken. The only midday Dvitīyā reaches.

madhyāhna begins 12:19  13:07 madhyāhna ends
11:3111:5512:1912:4313:0713:3113:55

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 16:53 on Sat 27 Jun to 19:17 on Sun 28 Jun.

    1987-06-27T07:52:53Z → 1987-06-28T10:17:09Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 12:19–13:07 on the 27th, 12:19–13:07 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 13566 s

  5. 05

    Ruling

    Rathayātrā, Daqing, 1987: Sunday 28 June.

    confidence: determinate

Say it like this

In Daqing, Rathayātrā 1987 falls on Sunday 28 June. Dvitīyā runs from 16:53 on Sat 27 Jun to 19:17 on Sun 28 Jun and covers all of madhyāhna that midday.

ahargana.org/daqing/festivals/1987/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 Angeles00:53 → 03:1712:3248 min12:320 min27 Jun
Chicago02:53 → 05:1712:3048 min12:300 min27 Jun
Jersey City03:53 → 06:1712:3548 min12:350 min27 Jun
Port of Spain03:53 → 06:1711:4548 min11:450 min27 Jun
London08:53 → 11:1712:3948 min12:400 min27 Jun
Durban09:53 → 12:1711:3548 min11:3542 min28 Jun
Dubai11:53 → 14:1711:5848 min11:5848 min28 Jun
Delhi13:23 → 15:4712:000 min12:0048 min28 Jun
Kolkata13:23 → 15:4711:150 min11:1648 min28 Jun
Singapore15:53 → 18:1712:430 min12:4448 min28 Jun
Sydney17:53 → 20:1711:340 min11:3448 min28 Jun
Suva19:53 → 22:1711:450 min11:4548 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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