Ruling · Rāsayātrā · 2025

Tuesday 4 November

Determinatein London, under the Rashtriya Panchang method. Clear of every threshold by 374 minutes.

Decide it for

51°31′ N 0°08′ W · Europe/London · GeoNames 2643743

The two nights

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

Night of Tuesday 4 November

Taken. The only night Pūrṇimā reaches.

niśītha begins 23:21  00:09 niśītha ends
22:3322:5723:2123:4500:0900:3300:57

48 of 48 minutes covered

Night of Wednesday 5 November

Pūrṇimā is absent from niśītha. Not taken.

niśītha begins 23:21  00:09 niśītha ends
22:3322:5723:2123:4500:0900:3300:57

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 17:07 on Tue 4 Nov to 13:19 on Wed 5 Nov.

    2025-11-04T17:06:47Z → 2025-11-05T13:19:18Z

  2. 02

    Kāla

    Niśītha is 1 ghaṭikā either side of midnight: 23:21–00:09 on the 4th, 23:21–00:09 on the 5th.

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

  3. 03

    Rule

    Pūrṇimā must be present during niśītha. It covers 48 of 48 minutes on the 4th and 0 of 48 on the 5th.

    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 22430 s

  5. 05

    Ruling

    Rāsayātrā, London, 2025: Tuesday 4 November.

    confidence: determinate

Say it like this

In London, Rāsayātrā 2025 falls on Tuesday 4 November. Pūrṇimā runs from 17:07 on Tue 4 Nov to 13:19 on Wed 5 Nov and covers all of niśītha that night.

ahargana.org/london/festivals/2025/rasayatra · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 4 Nov
Ahargaṇa, classicalDisc centre, no refractionTue 4 Nov
compat-drikpanchangComparison profileTue 4 Nov
No institution has a recorded ruling for London.

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 4thCoveredNiśītha 5thCoveredRuled
Los Angeles09:07 → 05:1923:1348 min23:130 min4 Nov
Chicago11:07 → 07:1923:1148 min23:110 min4 Nov
Jersey City12:07 → 08:1923:1648 min23:160 min4 Nov
Port of Spain13:07 → 09:1923:2648 min23:260 min4 Nov
London17:07 → 13:1923:2148 min23:210 min4 Nov
Durban19:07 → 15:1923:1548 min23:150 min4 Nov
Dubai21:07 → 17:1923:3948 min23:390 min4 Nov
Delhi22:37 → 18:4923:4148 min23:410 min4 Nov
Kolkata22:37 → 18:4922:5648 min22:560 min4 Nov
Singapore01:07 → 21:1900:245 min00:240 min4 Nov
Sydney04:07 → 00:1900:150 min00:155 min5 Nov
Suva05:07 → 01:1923:260 min23:2648 min5 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