Ruling · Kārtikī Pūrṇimā · 2091

Sunday 25 November

Boundaryin Baoding, under the Rashtriya Panchang method. Both middays qualify and the rule does not say which to take. Say “contested”.

Decide it for

38°52′ N 115°28′ E · Asia/Shanghai · GeoNames 1816971

The two middays

One ghaṭī is 24 minutes. Madhyāhna is 1 ghaṭikā either side of midday.

Midday of Sunday 25 November

Taken. Both middays qualify; the rule is silent, and this one is covered longer.

madhyāhna begins 11:41  12:29 madhyāhna ends
10:5311:1711:4112:0512:2912:5313:17

48 of 48 minutes covered

Midday of Monday 26 November

Qualifies with 3 of 48 minutes. Not taken.

madhyāhna begins 11:41  12:29 madhyāhna ends
Pūrṇimā ends 11:44:43
10:5311:1711:4112:0512:2912:5313:17

3 of 48 minutes covered, the first 3

Pūrṇimā presentMadhyāhna, the window the rule readsThe instant the tithi begins or ends

How it was decided

  1. 01

    Aṅga

    Pūrṇimā runs from 09:25 on Sun 25 Nov to 11:45 on Mon 26 Nov.

    2091-11-25T01:24:35Z → 2091-11-26T03:44:43Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:41–12:29 on the 25th, 11:41–12:29 on the 26th.

    madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′

  3. 03

    Rule

    Pūrṇimā must be present during madhyāhna. It covers 48 of 48 minutes on the 25th and 3 of 48 on the 26th.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104

  4. 04

    Tie-break

    Both middays qualify and the rule marks neither. The one covered longer is ruled, as a boundary.

    priority: unstated → greater-coverage · margin 196 s < 300 s

  5. 05

    Ruling

    Kārtikī Pūrṇimā, Baoding, 2091: Sunday 25 November.

    confidence: boundary (margin, tie-break-unstated)

Say it like this

In Baoding, Kārtikī Pūrṇimā 2091 falls on Sunday 25 November. Pūrṇimā runs from 09:25 on Sun 25 Nov to 11:45 on Mon 26 Nov and covers all of madhyāhna that midday. It also reaches the next midday for 3 minutes; the rule does not say which to take, and the one covered longer is ruled: treat the date as contested. It is 3 min 16 s from a threshold: treat the date as contested.

ahargana.org/baoding/festivals/2091/kartiki-purnima · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSun 25 Nov
Ahargaṇa, classicalDisc centre, no refractionSun 25 Nov
compat-drikpanchangComparison profileSun 25 Nov
No institution has a recorded ruling for Baoding.

Institutional rulings are recorded with a source address, and are never edited to agree.

The rule, as data

/rules/kartiki-purnima · ruleset 2026.3-draft

Month
Kārtika, amānta
Pakṣa · aṅga
Śukla · Pūrṇimā
Kāla
Madhyāhna
Priority
Unstated
Tie-break
Longer coverage, as a boundary
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.

PlacePūrṇimāMadhyāhna 25thCoveredMadhyāhna 26thCoveredRuled
Los Angeles17:25 → 19:4511:1648 min11:170 min25 Nov
Chicago19:25 → 21:4511:1448 min11:140 min25 Nov
Jersey City20:25 → 22:4511:1948 min11:200 min25 Nov
Port of Spain21:25 → 23:4511:2948 min11:300 min25 Nov
London01:25 → 03:4511:2448 min11:240 min25 Nov
Durban03:25 → 05:4511:1948 min11:200 min25 Nov
Dubai05:25 → 07:4511:4248 min11:420 min25 Nov
Delhi06:55 → 09:1511:4448 min11:440 min25 Nov
Kolkata06:55 → 09:1511:0048 min11:000 min25 Nov
Singapore09:25 → 11:4512:2848 min12:280 min25 Nov
Sydney12:25 → 14:4512:1842 min12:1948 min26 Nov
Suva13:25 → 15:4511:290 min11:3048 min26 Nov
Profile · tradition
pac-rp@2026.1 · smarta
Rule
kartiki-purnima@2026.3-draft
Engine · kernel
0.1.0 · de440 7eef…ea74
Boundary margin
300 s

About Ahargaṇa