Ruling · Rathayātrā · 1931

Friday 17 July

Determinatein Daqing, under the Rashtriya Panchang method. Clear of every threshold by 179 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 Thursday 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

Midday of Friday 17 July

Taken. The only midday Dvitīyā reaches.

madhyāhna begins 11:22  12:10 madhyāhna ends
10:3410:5811:2211:4612:1012:3412:58

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 17:52 on Thu 16 Jul to 15:09 on Fri 17 Jul.

    1931-07-16T09:51:30Z → 1931-07-17T07:08:44Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:21–12:09 on the 16th, 11:22–12:10 on the 17th.

    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 16th and 48 of 48 on the 17th.

    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 10749 s

  5. 05

    Ruling

    Rathayātrā, Daqing, 1931: Friday 17 July.

    confidence: determinate

Say it like this

In Daqing, Rathayātrā 1931 falls on Friday 17 July. Dvitīyā runs from 17:52 on Thu 16 Jul to 15:09 on Fri 17 Jul and covers all of madhyāhna that midday.

ahargana.org/daqing/festivals/1931/rathayatra · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingFri 17 Jul
Ahargaṇa, classicalDisc centre, no refractionFri 17 Jul
compat-drikpanchangComparison profileFri 17 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 16thCoveredMadhyāhna 17thCoveredRuled
Los Angeles01:52 → 23:0911:3548 min11:350 min16 Jul
Chicago04:52 → 02:0912:3248 min12:320 min16 Jul
Jersey City05:52 → 03:0912:3848 min12:380 min16 Jul
Port of Spain05:52 → 03:0911:4848 min11:480 min16 Jul
London10:52 → 08:0912:4248 min12:420 min16 Jul
Durban11:52 → 09:0911:3834 min11:380 min16 Jul
Dubai13:52 → 11:0912:000 min12:010 min17 Jul
Delhi15:22 → 12:3912:030 min12:0336 min17 Jul
Kolkata15:22 → 12:3911:180 min11:1848 min17 Jul
Singapore16:52 → 14:0911:460 min11:4648 min17 Jul
Sydney19:52 → 17:0911:370 min11:3748 min17 Jul
Suva21:52 → 19:0911:480 min11:4848 min17 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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