Ruling · Rathayātrā · 2037

Tuesday 14 July

Determinatein Daqing, under the Rashtriya Panchang method. Clear of every threshold by 204 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 Tuesday 14 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

Midday of Wednesday 15 July

Dvitīyā is absent from madhyāhna. Not taken.

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

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 07:58 on Tue 14 Jul to 05:09 on Wed 15 Jul.

    2037-07-13T23:58:03Z → 2037-07-14T21:09:28Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:22–12:10 on the 14th, 11:22–12:10 on the 15th.

    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 14th and 0 of 48 on the 15th.

    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 12217 s

  5. 05

    Ruling

    Rathayātrā, Daqing, 2037: Tuesday 14 July.

    confidence: determinate

Say it like this

In Daqing, Rathayātrā 2037 falls on Tuesday 14 July. Dvitīyā runs from 07:58 on Tue 14 Jul to 05:09 on Wed 15 Jul and covers all of madhyāhna that midday.

ahargana.org/daqing/festivals/2037/rathayatra · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 14 Jul
Ahargaṇa, classicalDisc centre, no refractionTue 14 Jul
compat-drikpanchangComparison profileTue 14 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 13thCoveredMadhyāhna 14thCoveredRuled
Los Angeles16:58 → 14:0912:350 min12:3548 min14 Jul
Chicago18:58 → 16:0912:320 min12:3248 min14 Jul
Jersey City19:58 → 17:0912:380 min12:3848 min14 Jul
Port of Spain19:58 → 17:0911:480 min11:4848 min14 Jul
London00:58 → 22:0912:420 min12:4248 min14 Jul
Durban01:58 → 23:0911:380 min11:3848 min14 Jul
Dubai03:58 → 01:0912:010 min12:0148 min14 Jul
Delhi05:28 → 02:3912:030 min12:0348 min14 Jul
Kolkata05:28 → 02:3911:180 min11:1848 min14 Jul
Singapore07:58 → 05:0912:460 min12:4748 min14 Jul
Sydney09:58 → 07:0911:370 min11:3748 min14 Jul
Suva11:58 → 09:0911:480 min11:4838 min14 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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