Ruling · Rathayātrā · 2010

Tuesday 13 July

Determinatein Daqing, under the Rashtriya Panchang method. Clear of every threshold by 539 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 Monday 12 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 Tuesday 13 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

Dvitīyā presentMadhyāhna, the window the rule readsThe instant the tithi begins or ends

How it was decided

  1. 01

    Aṅga

    Dvitīyā runs from 00:29 on Tue 13 Jul to 21:09 on Tue 13 Jul.

    2010-07-12T16:29:06Z → 2010-07-13T13:08:43Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:21–12:09 on the 12th, 11:21–12:09 on the 13th.

    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 12th and 48 of 48 on the 13th.

    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 32356 s

  5. 05

    Ruling

    Rathayātrā, Daqing, 2010: Tuesday 13 July.

    confidence: determinate

Say it like this

In Daqing, Rathayātrā 2010 falls on Tuesday 13 July. Dvitīyā runs from 00:29 on Tue 13 Jul to 21:09 on Tue 13 Jul and covers all of madhyāhna that midday.

ahargana.org/daqing/festivals/2010/rathayatra · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 13 Jul
Ahargaṇa, classicalDisc centre, no refractionTue 13 Jul
compat-drikpanchangComparison profileTue 13 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 12thCoveredMadhyāhna 13thCoveredRuled
Los Angeles09:29 → 06:0912:3548 min12:350 min12 Jul
Chicago11:29 → 08:0912:3248 min12:320 min12 Jul
Jersey City12:29 → 09:0912:3848 min12:380 min12 Jul
Port of Spain12:29 → 09:0911:487 min11:480 min12 Jul
London17:29 → 14:0912:420 min12:4248 min13 Jul
Durban18:29 → 15:0911:380 min11:3848 min13 Jul
Dubai20:29 → 17:0912:000 min12:0048 min13 Jul
Delhi21:59 → 18:3912:030 min12:0348 min13 Jul
Kolkata21:59 → 18:3911:180 min11:1848 min13 Jul
Singapore00:29 → 21:0912:460 min12:4648 min13 Jul
Sydney02:29 → 23:0911:370 min11:3748 min13 Jul
Suva04:29 → 01:0911:480 min11:4848 min13 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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