Ruling · Rāsayātrā · 1980

Friday 21 November

Determinatein Phoenix, under the Rashtriya Panchang method. Clear of every threshold by 12 minutes.

Decide it for

PhoenixDelhiKolkataSingaporeSydneyJersey City

33°27′ N 112°04′ W · America/Phoenix · GeoNames 5308655

The two nights

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

Night of Thursday 20 November

Pūrṇimā is absent from niśītha. Not taken.

niśītha begins 23:50  00:38 niśītha ends
23:0223:2623:5000:1400:3801:0201:26

0 of 48 minutes covered

Night of Friday 21 November

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

niśītha begins 23:51  00:39 niśītha ends
Pūrṇimā ends 23:38:51
23:0323:2723:5100:1500:3901:0301:27

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 03:13 on Fri 21 Nov to 23:39 on Fri 21 Nov.

    1980-11-21T10:12:56Z → 1980-11-22T06:38:51Z

  2. 02

    Kāla

    Niśītha is 1 ghaṭikā either side of midnight: 23:50–00:38 on the 20th, 23:51–00:39 on the 21st.

    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 20th and 0 of 48 on the 21st.

    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 709 s

  5. 05

    Ruling

    Rāsayātrā, Phoenix, 1980: Friday 21 November.

    confidence: determinate

Say it like this

In Phoenix, Rāsayātrā 1980 falls on Friday 21 November. Pūrṇimā runs from 03:13 on Fri 21 Nov to 23:39 on Fri 21 Nov, and reaches niśītha on neither day.

ahargana.org/phoenix/festivals/1980/rasayatra · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingFri 21 Nov
Ahargaṇa, classicalDisc centre, no refractionFri 21 Nov
compat-drikpanchangComparison profileFri 21 Nov
No institution has a recorded ruling for Phoenix.

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 21stCoveredNiśītha 22ndCoveredRuled
Los Angeles02:13 → 22:3923:150 min23:160 min21 Nov
Chicago04:13 → 00:3923:1348 min23:130 min21 Nov
Jersey City05:13 → 01:3923:1948 min23:190 min21 Nov
Port of Spain06:13 → 02:3923:2848 min23:290 min21 Nov
London10:13 → 06:3923:2348 min23:230 min21 Nov
Durban12:13 → 08:3923:1848 min23:180 min21 Nov
Dubai14:13 → 10:3923:4148 min23:410 min21 Nov
Delhi15:43 → 12:0923:4348 min23:440 min21 Nov
Kolkata15:43 → 12:0922:5948 min22:590 min21 Nov
Singapore17:43 → 14:0923:5748 min23:570 min21 Nov
Sydney21:13 → 17:3900:1748 min00:170 min21 Nov
Suva22:13 → 18:3923:2848 min23:280 min21 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