Ruling · Rathayātrā · 1957

Saturday 29 June

Determinatein Daqing, under the Rashtriya Panchang method. Clear of every threshold by 552 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 29 June

Taken. The only midday Dvitīyā reaches.

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

48 of 48 minutes covered

Midday of Sunday 30 June

Dvitīyā is absent from madhyāhna. Not taken.

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

0 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 02:07 on Sat 29 Jun to 23:06 on Sat 29 Jun.

    1957-06-28T18:07:15Z → 1957-06-29T15:05:34Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:19–12:07 on the 29th, 11:19–12:07 on the 30th.

    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 29th and 0 of 48 on the 30th.

    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 33112 s

  5. 05

    Ruling

    Rathayātrā, Daqing, 1957: Saturday 29 June.

    confidence: determinate

Say it like this

In Daqing, Rathayātrā 1957 falls on Saturday 29 June. Dvitīyā runs from 02:07 on Sat 29 Jun to 23:06 on Sat 29 Jun and covers all of madhyāhna that midday.

ahargana.org/daqing/festivals/1957/rathayatra · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 29 Jun
Ahargaṇa, classicalDisc centre, no refractionSat 29 Jun
compat-drikpanchangComparison profileSat 29 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 28thCoveredMadhyāhna 29thCoveredRuled
Los Angeles11:07 → 08:0612:3248 min12:320 min28 Jun
Chicago13:07 → 10:0612:3010 min12:300 min28 Jun
Jersey City14:07 → 11:0612:350 min12:360 min29 Jun
Port of Spain14:07 → 11:0611:450 min11:450 min29 Jun
London19:07 → 16:0612:390 min12:4048 min29 Jun
Durban20:07 → 17:0611:350 min11:3548 min29 Jun
Dubai22:07 → 19:0611:580 min11:5848 min29 Jun
Delhi23:37 → 20:3612:000 min12:0048 min29 Jun
Kolkata23:37 → 20:3611:160 min11:1648 min29 Jun
Singapore01:37 → 22:3612:140 min12:1448 min29 Jun
Sydney04:07 → 01:0611:340 min11:3448 min29 Jun
Suva06:07 → 03:0611:450 min11:4548 min29 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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