Ruling · Rathayātrā · 2085

Sunday 24 June

Determinatein Chattogram, under the Rashtriya Panchang method. Clear of every threshold by 27 minutes.

Decide it for

22°20′ N 91°50′ E · Asia/Dhaka · GeoNames 1205733

The two middays

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

Midday of Saturday 23 June

Qualifies with 48 of 48 minutes. Not taken.

madhyāhna begins 11:31  12:19 madhyāhna ends
Dvitīyā begins 10:51:12
10:4311:0711:3111:5512:1912:4313:07

48 of 48 minutes covered

Midday of Sunday 24 June

Taken. Both middays qualify; the rule takes the second.

madhyāhna begins 11:32  12:20 madhyāhna ends
Dvitīyā ends 12:46:16
10:4411:0811:3211:5612:2012:4413:08

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 10:51 on Sat 23 Jun to 12:46 on Sun 24 Jun.

    2085-06-23T04:51:12Z → 2085-06-24T06:46:17Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:31–12:19 on the 23rd, 11:32–12:20 on the 24th.

    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 23rd and 48 of 48 on the 24th.

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

  4. 04

    Tie-break

    Both middays qualify. Paraviddhā: the second is taken.

    priority: paraviddha → paraviddha · margin 1600 s

  5. 05

    Ruling

    Rathayātrā, Chattogram, 2085: Sunday 24 June.

    confidence: determinate

Say it like this

In Chattogram, Rathayātrā 2085 falls on Sunday 24 June. Dvitīyā runs from 10:51 on Sat 23 Jun to 12:46 on Sun 24 Jun and covers all of madhyāhna that midday. It also reaches the previous midday for 48 minutes; by the rule the second midday is taken.

ahargana.org/chattogram/festivals/2085/rathayatra · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSun 24 Jun
Ahargaṇa, classicalDisc centre, no refractionSun 24 Jun
compat-drikpanchangComparison profileSun 24 Jun
No institution has a recorded ruling for Chattogram.

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 23rdCoveredMadhyāhna 24thCoveredRuled
Los Angeles21:51 → 23:4612:3248 min12:320 min23 Jun
Chicago23:51 → 01:4612:2948 min12:300 min23 Jun
Jersey City00:51 → 02:4612:3548 min12:350 min23 Jun
Port of Spain00:51 → 02:4611:4548 min11:450 min23 Jun
London05:51 → 07:4612:3948 min12:390 min23 Jun
Durban06:51 → 08:4611:3548 min11:350 min23 Jun
Dubai08:51 → 10:4611:5848 min11:580 min23 Jun
Delhi10:21 → 12:1612:0048 min12:0016 min24 Jun
Kolkata10:21 → 12:1611:1548 min11:1548 min24 Jun
Singapore12:51 → 14:4612:4340 min12:4448 min24 Jun
Sydney14:51 → 16:4611:340 min11:3448 min24 Jun
Suva16:51 → 18:4611:450 min11:4548 min24 Jun
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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