Ruling · Rāsayātrā · 2027

Saturday 13 November

Determinatein Ujjain, under the Rashtriya Panchang method. Clear of every threshold by 501 minutes.

Decide it for

23°11′ N 75°47′ E · Asia/Kolkata · GeoNames 1253914

The two nights

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

Night of Friday 12 November

Pūrṇimā is absent from niśītha. Not taken.

niśītha begins 23:47  00:35 niśītha ends
22:5923:2323:4700:1100:3500:5901:23

0 of 48 minutes covered

Night of Saturday 13 November

Taken. The only night Pūrṇimā reaches.

niśītha begins 23:47  00:35 niśītha ends
22:5923:2323:4700:1100:3500:5901:23

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 09:56 on Sat 13 Nov to 08:56 on Sun 14 Nov.

    2027-11-13T04:25:47Z → 2027-11-14T03:25:56Z

  2. 02

    Kāla

    Niśītha is 1 ghaṭikā either side of midnight: 23:47–00:35 on the 12th, 23:47–00:35 on the 13th.

    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 12th and 48 of 48 on the 13th.

    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 30038 s

  5. 05

    Ruling

    Rāsayātrā, Ujjain, 2027: Saturday 13 November.

    confidence: determinate

Say it like this

In Ujjain, Rāsayātrā 2027 falls on Saturday 13 November. Pūrṇimā runs from 09:56 on Sat 13 Nov to 08:56 on Sun 14 Nov and covers all of niśītha that night.

ahargana.org/ujjain/festivals/2027/rasayatra · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 13 Nov
Ahargaṇa, classicalDisc centre, no refractionSat 13 Nov
compat-drikpanchangComparison profileSat 13 Nov
No institution has a recorded ruling for Ujjain.

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 13thCoveredNiśītha 14thCoveredRuled
Los Angeles20:26 → 19:2623:140 min23:140 min12 Nov
Chicago22:26 → 21:2623:110 min23:110 min12 Nov
Jersey City23:26 → 22:2623:170 min23:170 min12 Nov
Port of Spain00:26 → 23:2623:260 min23:270 min13 Nov
London04:26 → 03:2623:2148 min23:210 min13 Nov
Durban06:26 → 05:2623:1648 min23:160 min13 Nov
Dubai08:26 → 07:2623:3948 min23:390 min13 Nov
Delhi09:56 → 08:5623:4248 min23:420 min13 Nov
Kolkata09:56 → 08:5622:5748 min22:570 min13 Nov
Singapore12:26 → 11:2600:2548 min00:250 min13 Nov
Sydney15:26 → 14:2600:1548 min00:150 min13 Nov
Suva16:26 → 15:2623:2648 min23:270 min13 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