Ruling · Rathayātrā · 1923

Sunday 15 July

Determinatein Daqing, under the Rashtriya Panchang method. Clear of every threshold by 190 minutes.

Decide it for

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 Sunday 15 July

Taken. The only midday Dvitīyā reaches.

madhyāhna begins 11:21  12:09 madhyāhna ends
10:3310:5711:2111:4512:0912:3312:57

48 of 48 minutes covered

Midday of Monday 16 July

Dvitīyā is absent from madhyāhna. Not taken.

madhyāhna begins 11:21  12:09 madhyāhna ends
10:3310:5711:2111:4512:0912:3312:57

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 08:11 on Sun 15 Jul to 07:14 on Mon 16 Jul.

    1923-07-15T00:11:19Z → 1923-07-15T23:14:29Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:21–12:09 on the 15th, 11:21–12:09 on the 16th.

    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 15th and 0 of 48 on the 16th.

    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 11403 s

  5. 05

    Ruling

    Rathayātrā, Daqing, 1923: Sunday 15 July.

    confidence: determinate

Say it like this

In Daqing, Rathayātrā 1923 falls on Sunday 15 July. Dvitīyā runs from 08:11 on Sun 15 Jul to 07:14 on Mon 16 Jul and covers all of madhyāhna that midday.

ahargana.org/daqing/festivals/1923/rathayatra · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSun 15 Jul
Ahargaṇa, classicalDisc centre, no refractionSun 15 Jul
compat-drikpanchangComparison profileSun 15 Jul
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 15thCoveredMadhyāhna 16thCoveredRuled
Los Angeles16:11 → 15:1411:3548 min11:350 min15 Jul
Chicago19:11 → 18:1412:3248 min12:320 min15 Jul
Jersey City20:11 → 19:1412:3848 min12:380 min15 Jul
Port of Spain20:11 → 19:1411:4848 min11:480 min15 Jul
London01:11 → 00:1412:4248 min12:420 min15 Jul
Durban02:11 → 01:1411:3848 min11:380 min15 Jul
Dubai04:11 → 03:1412:0048 min12:000 min15 Jul
Delhi05:41 → 04:4412:0348 min12:030 min15 Jul
Kolkata05:41 → 04:4411:1848 min11:180 min15 Jul
Singapore07:11 → 06:1411:4648 min11:460 min15 Jul
Sydney10:11 → 09:1411:3748 min11:370 min15 Jul
Suva12:11 → 11:1411:4825 min11:480 min15 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

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