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Ruling · 2071 · Datong

Rathayātrā

Monday 29 June2071 · Datong, Shanxi, China

Determinatemargin 346 min

In Datong, under the Rashtriya Panchang method. Clear of every threshold by 346 minutes.

Decide it forDatongDelhiKolkataSingaporeSydneyJersey City40°06′ N 113°17′ E · Asia/Shanghai · GeoNames 2037799

The two middays मध्याह्न

One ghaṭī is 24 minutes

Madhyāhna is 1 ghaṭikā either side of midday.

Midday of Sunday 28 June

Dvitīyā is absent from madhyāhna. Not taken.

madhyāhna begins 12:06  12:54 madhyāhna ends
11:1811:4212:0612:3012:5413:1813:42

0 of 48 minutes covered

Midday of Monday 29 June

Taken. The only midday Dvitīyā reaches.

madhyāhna begins 12:07  12:55 madhyāhna ends
11:1911:4312:0712:3112:5513:1913:43

48 of 48 minutes covered

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

How it was decided निर्णय

  1. Step 1, Aṅga

    Dvitīyā runs from 22:29 on Sun 28 Jun to 18:41 on Mon 29 Jun.

    2071-06-28T14:28:37Z → 2071-06-29T10:40:33Z
  2. Step 2, Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 12:06–12:54 on the 28th, 12:07–12:55 on the 29th.

    madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′
  3. Step 3, Rule

    Dvitīyā must be present during madhyāhna. It covers 0 of 48 minutes on the 28th and 48 of 48 on the 29th.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102
  4. Step 4, Tie-break

    Only one midday qualifies. No tie-break is needed.

    priority: paraviddha → only-day · margin 20763 s
  5. Step 5, Ruling

    Rathayātrā, Datong, 2071: Monday 29 June.

    confidence: determinate

Say it like this

In Datong, Rathayātrā 2071 falls on Monday 29 June. Dvitīyā runs from 22:29 on Sun 28 Jun to 18:41 on Mon 29 Jun and covers all of madhyāhna that midday.

ahargana.org/datong/festivals/2071/rathayatrapac-rp@2026.1

Who says what

never edited to agree

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingMon 29 Jun
Ahargaṇa, classicalDisc centre, no refractionMon 29 Jun
compat-drikpanchangComparison profileMon 29 Jun
No institution has a recorded ruling for Datong.

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 clocks

PlaceDvitīyāMadhyāhna 28thCoveredMadhyāhna 29thCoveredRuled
Los Angeles07:29 → 03:4112:3348 min12:330 min28 Jun
Chicago09:29 → 05:4112:3048 min12:300 min28 Jun
Jersey City10:29 → 06:4112:3648 min12:360 min28 Jun
Port of Spain10:29 → 06:4111:4648 min11:460 min28 Jun
London15:29 → 11:4112:400 min12:400 min29 Jun
Durban16:29 → 12:4111:360 min11:3648 min29 Jun
Dubai18:29 → 14:4111:580 min11:5948 min29 Jun
Delhi19:59 → 16:1112:010 min12:0148 min29 Jun
Kolkata19:59 → 16:1111:160 min11:1648 min29 Jun
Singapore22:29 → 18:4112:440 min12:4448 min29 Jun
Sydney00:29 → 20:4111:350 min11:3548 min29 Jun
Suva02:29 → 22:4111:460 min11:4648 min29 Jun
This ruling as JSON · ICS
Profile · tradition
pac-rp@2026.1 · smarta
Rule
rathayatra@2026.3-draft
Engine · kernel
0.1.0 · de440 7eef…ea74
Boundary margin
300 s