Ruling · Rāsayātrā · 1945

Monday 19 November

Determinatein Chattogram, under the Rashtriya Panchang method. Clear of every threshold by 58 minutes.

Decide it for

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

The two nights

One ghaṭī is 24 minutes. Niśītha is 1 ghaṭikā either side of midnight.

Night of Sunday 18 November

Pūrṇimā is absent from niśītha. Not taken.

niśītha begins 23:44  00:32 niśītha ends
22:5623:2023:4400:0800:3200:5601:20

0 of 48 minutes covered

Night of Monday 19 November

Taken. Pūrṇimā reaches neither night; the rule takes the second day.

niśītha begins 23:44  00:32 niśītha ends
22:5623:2023:4400:0800:3200:5601:20

0 of 48 minutes covered

Pūrṇimā presentNiśītha, the window the rule readsThe instant the tithi begins or ends

How it was decided

  1. 01

    Aṅga

    Pūrṇimā runs from 01:30 on Mon 19 Nov to 21:43 on Mon 19 Nov.

    1945-11-18T19:00:07Z → 1945-11-19T15:12:50Z

  2. 02

    Kāla

    Niśītha is 1 ghaṭikā either side of midnight: 23:44–00:32 on the 18th, 23:44–00:32 on the 19th.

    nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′

  3. 03

    Rule

    Pūrṇimā must be present during niśītha. It covers 0 of 48 minutes on the 18th and 0 of 48 on the 19th.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104

  4. 04

    Tie-break

    Neither night qualifies. The rule takes the second day.

    priority: paraviddha → second-day · margin 3484 s

  5. 05

    Ruling

    Rāsayātrā, Chattogram, 1945: Monday 19 November.

    confidence: determinate

Say it like this

In Chattogram, Rāsayātrā 1945 falls on Monday 19 November. Pūrṇimā runs from 01:30 on Mon 19 Nov to 21:43 on Mon 19 Nov, and reaches niśītha on neither day.

ahargana.org/chattogram/festivals/1945/rasayatra · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingMon 19 Nov
Ahargaṇa, classicalDisc centre, no refractionMon 19 Nov
compat-drikpanchangComparison profileMon 19 Nov
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/rasayatra · ruleset 2026.3-draft

Month
Kārtika, amānta
Pakṣa · aṅga
Śukla · Pūrṇimā
Kāla
Niśītha
Priority
Paraviddhā
Tie-break
Second day
Reference
CRC 1955, p. 104

“S 15 Rasayatra, (nisithavyapini, i.e. covering a period from 24 minutes before to 24 minutes after midnight. If occurs on two days or does not occur on any day, it is to be observed on the second day), Puskar Fair. Ratha yatra (Jain), Tripurotsava (evening), Kedara vrata (Orissa), Kartiki purnima.” Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104.

The same rule, elsewhere

Twelve places, west to east. Local clock times.

PlacePūrṇimāNiśītha 18thCoveredNiśītha 19thCoveredRuled
Los Angeles11:00 → 07:1323:1548 min23:150 min18 Nov
Chicago13:00 → 09:1323:1248 min23:120 min18 Nov
Jersey City14:00 → 10:1323:1848 min23:180 min18 Nov
Port of Spain15:00 → 11:1323:2748 min23:280 min18 Nov
London19:00 → 15:1323:2248 min23:220 min18 Nov
Durban21:00 → 17:1323:1748 min23:170 min18 Nov
Dubai23:00 → 19:1323:4048 min23:400 min18 Nov
Delhi00:30 → 20:4323:430 min23:430 min18 Nov
Kolkata00:30 → 20:4322:580 min22:580 min19 Nov
Singapore02:30 → 22:4323:560 min23:560 min19 Nov
Sydney05:00 → 01:1323:160 min23:1648 min19 Nov
Suva07:00 → 03:1323:270 min23:2848 min19 Nov
Profile · tradition
pac-rp@2026.1 · smarta
Rule
rasayatra@2026.3-draft
Engine · kernel
0.1.0 · de440 7eef…ea74
Boundary margin
300 s

About Ahargaṇa