Ruling · Rāsayātrā · 1977

Thursday 24 November

Determinatein Riyadh, under the Rashtriya Panchang method. Clear of every threshold by 165 minutes.

Decide it for

RiyadhDelhiKolkataSingaporeSydneyJersey City

24°41′ N 46°43′ E · Asia/Riyadh · GeoNames 108410

The two nights

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

Night of Thursday 24 November

Taken. The only night Pūrṇimā reaches.

niśītha begins 23:16  00:04 niśītha ends
22:2822:5223:1623:4000:0400:2800:52

48 of 48 minutes covered

Night of Friday 25 November

Pūrṇimā is absent from niśītha. Not taken.

niśītha begins 23:16  00:04 niśītha ends
22:2822:5223:1623:4000:0400:2800:52

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 18:16 on Thu 24 Nov to 20:31 on Fri 25 Nov.

    1977-11-24T15:15:48Z → 1977-11-25T17:31:25Z

  2. 02

    Kāla

    Niśītha is 1 ghaṭikā either side of midnight: 23:16–00:04 on the 24th, 23:16–00:04 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 48 of 48 minutes on the 24th and 0 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 9897 s

  5. 05

    Ruling

    Rāsayātrā, Riyadh, 1977: Thursday 24 November.

    confidence: determinate

Say it like this

In Riyadh, Rāsayātrā 1977 falls on Thursday 24 November. Pūrṇimā runs from 18:16 on Thu 24 Nov to 20:31 on Fri 25 Nov and covers all of niśītha that night.

ahargana.org/riyadh/festivals/1977/rasayatra · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 24 Nov
Ahargaṇa, classicalDisc centre, no refractionThu 24 Nov
compat-drikpanchangComparison profileThu 24 Nov
No institution has a recorded ruling for Riyadh.

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 24thCoveredNiśītha 25thCoveredRuled
Los Angeles07:16 → 09:3123:1648 min23:160 min24 Nov
Chicago09:16 → 11:3123:1448 min23:140 min24 Nov
Jersey City10:16 → 12:3123:1948 min23:200 min24 Nov
Port of Spain11:16 → 13:3123:2948 min23:290 min24 Nov
London15:16 → 17:3123:2448 min23:240 min24 Nov
Durban17:16 → 19:3123:1948 min23:190 min24 Nov
Dubai19:16 → 21:3123:4248 min23:420 min24 Nov
Delhi20:46 → 23:0123:4448 min23:440 min24 Nov
Kolkata20:46 → 23:0122:5948 min23:002 min25 Nov
Singapore22:46 → 01:0123:5748 min23:5848 min25 Nov
Sydney02:16 → 04:3100:180 min00:1848 min25 Nov
Suva03:16 → 05:3123:290 min23:2948 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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