Ruling · Rāsayātrā · 1957

Wednesday 6 November

Determinatein Tehran, under the Rashtriya Panchang method. Clear of every threshold by 322 minutes.

Decide it for

35°42′ N 51°25′ E · Asia/Tehran · GeoNames 112931

The two nights

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

Night of Wednesday 6 November

Taken. The only night Pūrṇimā reaches.

niśītha begins 23:24  00:12 niśītha ends
22:3623:0023:2423:4800:1200:3601:00

48 of 48 minutes covered

Night of Thursday 7 November

Pūrṇimā is absent from niśītha. Not taken.

niśītha begins 23:24  00:12 niśītha ends
22:3623:0023:2423:4800:1200:3601:00

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 16:47 on Wed 6 Nov to 18:02 on Thu 7 Nov.

    1957-11-06T13:16:42Z → 1957-11-07T14:31:58Z

  2. 02

    Kāla

    Niśītha is 1 ghaṭikā either side of midnight: 23:24–00:12 on the 6th, 23:24–00:12 on the 7th.

    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 6th and 0 of 48 on the 7th.

    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 19341 s

  5. 05

    Ruling

    Rāsayātrā, Tehran, 1957: Wednesday 6 November.

    confidence: determinate

Say it like this

In Tehran, Rāsayātrā 1957 falls on Wednesday 6 November. Pūrṇimā runs from 16:47 on Wed 6 Nov to 18:02 on Thu 7 Nov and covers all of niśītha that night.

ahargana.org/tehran/festivals/1957/rasayatra · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 6 Nov
Ahargaṇa, classicalDisc centre, no refractionWed 6 Nov
compat-drikpanchangComparison profileWed 6 Nov
No institution has a recorded ruling for Tehran.

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 6thCoveredNiśītha 7thCoveredRuled
Los Angeles05:17 → 06:3223:1348 min23:130 min6 Nov
Chicago07:17 → 08:3223:1148 min23:110 min6 Nov
Jersey City08:17 → 09:3223:1648 min23:160 min6 Nov
Port of Spain09:17 → 10:3223:2648 min23:260 min6 Nov
London13:17 → 14:3223:2148 min23:210 min6 Nov
Durban15:17 → 16:3223:1548 min23:150 min6 Nov
Dubai17:17 → 18:3223:3948 min23:390 min6 Nov
Delhi18:47 → 20:0223:4148 min23:410 min6 Nov
Kolkata18:47 → 20:0222:5648 min22:560 min6 Nov
Singapore20:47 → 22:0223:5448 min23:540 min6 Nov
Sydney23:17 → 00:3223:1546 min23:1548 min7 Nov
Suva01:17 → 02:3223:260 min23:2648 min7 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