Ruling · Rathayātrā · 2007

Monday 16 July

Determinatein Tehran, under the Rashtriya Panchang method. Clear of every threshold by 81 minutes.

Decide it for

TehranDelhiKolkataSingaporeSydneyJersey City

35°42′ N 51°25′ E · Asia/Tehran · GeoNames 112931

The two middays

One ghaṭī is 24 minutes. Madhyāhna is 1 ghaṭikā either side of midday.

Midday of Sunday 15 July

Dvitīyā is absent from madhyāhna. Not taken.

madhyāhna begins 11:46  12:34 madhyāhna ends
10:5811:2211:4612:1012:3412:5813:22

0 of 48 minutes covered

Midday of Monday 16 July

Taken. The only midday Dvitīyā reaches.

madhyāhna begins 11:46  12:34 madhyāhna ends
10:5811:2211:4612:1012:3412:5813:22

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 14:26 on Sun 15 Jul to 13:55 on Mon 16 Jul.

    2007-07-15T10:56:10Z → 2007-07-16T10:25:26Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:46–12:34 on the 15th, 11:46–12:34 on the 16th.

    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 15th and 48 of 48 on the 16th.

    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 4875 s

  5. 05

    Ruling

    Rathayātrā, Tehran, 2007: Monday 16 July.

    confidence: determinate

Say it like this

In Tehran, Rathayātrā 2007 falls on Monday 16 July. Dvitīyā runs from 14:26 on Sun 15 Jul to 13:55 on Mon 16 Jul and covers all of madhyāhna that midday.

ahargana.org/tehran/festivals/2007/rathayatra · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingMon 16 Jul
Ahargaṇa, classicalDisc centre, no refractionMon 16 Jul
compat-drikpanchangComparison profileMon 16 Jul
No institution has a recorded ruling for Tehran.

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 15thCoveredMadhyāhna 16thCoveredRuled
Los Angeles03:56 → 03:2512:3548 min12:350 min15 Jul
Chicago05:56 → 05:2512:3248 min12:320 min15 Jul
Jersey City06:56 → 06:2512:3848 min12:380 min15 Jul
Port of Spain06:56 → 06:2511:4848 min11:480 min15 Jul
London11:56 → 11:2512:4248 min12:420 min15 Jul
Durban12:56 → 12:2511:380 min11:3847 min16 Jul
Dubai14:56 → 14:2512:010 min12:0148 min16 Jul
Delhi16:26 → 15:5512:030 min12:0348 min16 Jul
Kolkata16:26 → 15:5511:180 min11:1848 min16 Jul
Singapore18:56 → 18:2512:470 min12:4748 min16 Jul
Sydney20:56 → 20:2511:370 min11:3748 min16 Jul
Suva22:56 → 22:2511:480 min11:4848 min16 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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