Ruling · Rāsayātrā · 1920

Thursday 25 November

Determinatein Mosul, under the Rashtriya Panchang method. Clear of every threshold by 263 minutes.

Decide it for

36°20′ N 43°07′ E · Asia/Baghdad · GeoNames 99072

The two nights

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

Night of Wednesday 24 November

Pūrṇimā is absent from niśītha. Not taken.

niśītha begins 23:31  00:19 niśītha ends
22:4323:0723:3123:5500:1900:4301:07

0 of 48 minutes covered

Night of Thursday 25 November

Taken. The only night Pūrṇimā reaches.

niśītha begins 23:31  00:19 niśītha ends
22:4323:0723:3123:5500:1900:4301:07

48 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 07:40 on Thu 25 Nov to 04:42 on Fri 26 Nov.

    1920-11-25T04:39:51Z → 1920-11-26T01:42:00Z

  2. 02

    Kāla

    Niśītha is 1 ghaṭikā either side of midnight: 23:31–00:19 on the 24th, 23:31–00:19 on the 25th.

    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 24th and 48 of 48 on the 25th.

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

  4. 04

    Tie-break

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

    priority: paraviddha → only-day · margin 15787 s

  5. 05

    Ruling

    Rāsayātrā, Mosul, 1920: Thursday 25 November.

    confidence: determinate

Say it like this

In Mosul, Rāsayātrā 1920 falls on Thursday 25 November. Pūrṇimā runs from 07:40 on Thu 25 Nov to 04:42 on Fri 26 Nov and covers all of niśītha that night.

ahargana.org/mosul/festivals/1920/rasayatra · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 25 Nov
Ahargaṇa, classicalDisc centre, no refractionThu 25 Nov
compat-drikpanchangComparison profileThu 25 Nov
No institution has a recorded ruling for Mosul.

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 25thCoveredNiśītha 26thCoveredRuled
Los Angeles20:40 → 17:4223:160 min23:170 min24 Nov
Chicago22:40 → 19:4223:140 min23:140 min24 Nov
Jersey City23:40 → 20:4223:200 min23:200 min24 Nov
Port of Spain00:40 → 21:4223:290 min23:300 min25 Nov
London04:40 → 01:4223:2448 min23:240 min25 Nov
Durban06:40 → 03:4223:1948 min23:190 min25 Nov
Dubai08:40 → 05:4223:4248 min23:420 min25 Nov
Delhi10:10 → 07:1223:4448 min23:450 min25 Nov
Kolkata10:10 → 07:1223:0048 min23:000 min25 Nov
Singapore11:40 → 08:4223:2848 min23:280 min25 Nov
Sydney14:40 → 11:4223:1848 min23:180 min25 Nov
Suva16:40 → 13:4223:2948 min23:300 min25 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

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