Ruling · Rathayātrā · 2097

Thursday 11 July

Determinatein Daqing, under the Rashtriya Panchang method. Clear of every threshold by 65 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 Wednesday 10 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

Midday of Thursday 11 July

Taken. Dvitīyā reaches neither midday; the rule takes the second day.

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 13:15 on Wed 10 Jul to 09:46 on Thu 11 Jul.

    2097-07-10T05:14:43Z → 2097-07-11T01:45:55Z

  2. 02

    Kāla

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

    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 10th and 0 of 48 on the 11th.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102

  4. 04

    Tie-break

    Neither midday qualifies. The rule takes the second day.

    priority: paraviddha → second-day · margin 3897 s

  5. 05

    Ruling

    Rathayātrā, Daqing, 2097: Thursday 11 July.

    confidence: determinate

Say it like this

In Daqing, Rathayātrā 2097 falls on Thursday 11 July. Dvitīyā runs from 13:15 on Wed 10 Jul to 09:46 on Thu 11 Jul, and reaches madhyāhna on neither day.

ahargana.org/daqing/festivals/2097/rathayatra · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 11 Jul
Ahargaṇa, classicalDisc centre, no refractionThu 11 Jul
compat-drikpanchangComparison profileWed 10 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 10thCoveredMadhyāhna 11thCoveredRuled
Los Angeles22:15 → 18:4612:3548 min12:350 min10 Jul
Chicago00:15 → 20:4612:3248 min12:330 min10 Jul
Jersey City01:15 → 21:4612:3848 min12:380 min10 Jul
Port of Spain01:15 → 21:4611:4848 min11:480 min10 Jul
London06:15 → 02:4612:4248 min12:420 min10 Jul
Durban07:15 → 03:4611:3848 min11:380 min10 Jul
Dubai09:15 → 05:4612:0148 min12:010 min10 Jul
Delhi10:45 → 07:1612:0348 min12:030 min10 Jul
Kolkata10:45 → 07:1611:1848 min11:190 min10 Jul
Singapore13:15 → 09:4612:4720 min12:470 min10 Jul
Sydney15:15 → 11:4611:370 min11:379 min11 Jul
Suva17:15 → 13:4611:480 min11:4848 min11 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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