Ruling · Rāsayātrā · 2000

Saturday 11 November

Boundaryin Erbil, under the Rashtriya Panchang method. A threshold is only 2 min 17 s away. Say “contested”.

Decide it for

36°11′ N 44°01′ E · Asia/Baghdad · GeoNames 95446

The two nights

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

Night of Friday 10 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

Night of Saturday 11 November

Taken. The only night Pūrṇimā reaches.

niśītha begins 23:24  00:12 niśītha ends
Pūrṇimā ends 00:14:36
22:3623:0023:2423:4800:1200:3601:00

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 02:08 on Sat 11 Nov to 00:15 on Sun 12 Nov.

    2000-11-10T23:07:39Z → 2000-11-11T21:14:37Z

  2. 02

    Kāla

    Niśītha is 1 ghaṭikā either side of midnight: 23:24–00:12 on the 10th, 23:24–00:12 on the 11th.

    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 10th and 48 of 48 on the 11th.

    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 137 s < 300 s

  5. 05

    Ruling

    Rāsayātrā, Erbil, 2000: Saturday 11 November.

    confidence: boundary (margin)

Say it like this

In Erbil, Rāsayātrā 2000 falls on Saturday 11 November. Pūrṇimā runs from 02:08 on Sat 11 Nov to 00:15 on Sun 12 Nov and covers all of niśītha that night. It is 2 min 17 s from a threshold: treat the date as contested.

ahargana.org/erbil/festivals/2000/rasayatra · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 11 Nov
Ahargaṇa, classicalDisc centre, no refractionSat 11 Nov
compat-drikpanchangComparison profileSat 11 Nov
No institution has a recorded ruling for Erbil.

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 10thCoveredNiśītha 11thCoveredRuled
Los Angeles15:08 → 13:1523:1348 min23:130 min10 Nov
Chicago17:08 → 15:1523:1148 min23:110 min10 Nov
Jersey City18:08 → 16:1523:1748 min23:170 min10 Nov
Port of Spain19:08 → 17:1523:2648 min23:260 min10 Nov
London23:08 → 21:1523:2148 min23:210 min10 Nov
Durban01:08 → 23:1523:160 min23:160 min11 Nov
Dubai03:08 → 01:1523:390 min23:3948 min11 Nov
Delhi04:38 → 02:4523:410 min23:4148 min11 Nov
Kolkata04:38 → 02:4522:570 min22:5748 min11 Nov
Singapore07:08 → 05:1500:250 min00:2548 min11 Nov
Sydney10:08 → 08:1500:150 min00:1548 min11 Nov
Suva11:08 → 09:1523:260 min23:2648 min11 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