Ruling · Campā Ṣaṣṭhī · 2026

Tuesday 15 December

Determinatein Ujjain, under the Rashtriya Panchang method. Clear of every threshold by 391 minutes.

Decide it for

UjjainDelhiKolkataSingaporeSydneyJersey City

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

The two middays

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

Midday of Monday 14 December

Ṣaṣṭhī is absent from madhyāhna. Not taken.

madhyāhna begins 11:57  12:45 madhyāhna ends
11:0911:3311:5712:2112:4513:0913:33

0 of 48 minutes covered

Midday of Tuesday 15 December

Taken. The only midday Ṣaṣṭhī reaches.

madhyāhna begins 11:58  12:46 madhyāhna ends
11:1011:3411:5812:2212:4613:1013:34

48 of 48 minutes covered

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

How it was decided

  1. 01

    Aṅga

    Ṣaṣṭhī runs from 19:17 on Mon 14 Dec to 21:20 on Tue 15 Dec.

    2026-12-14T13:46:33Z → 2026-12-15T15:49:54Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:57–12:45 on the 14th, 11:58–12:46 on the 15th.

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

  3. 03

    Rule

    Ṣaṣṭhī must be present during madhyāhna. It covers 0 of 48 minutes on the 14th and 48 of 48 on the 15th.

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

  4. 04

    Tie-break

    Only one midday qualifies. No tie-break is needed.

    priority: paraviddha → only-day · margin 23469 s

  5. 05

    Ruling

    Campā Ṣaṣṭhī, Ujjain, 2026: Tuesday 15 December.

    confidence: determinate

Say it like this

In Ujjain, Campā Ṣaṣṭhī 2026 falls on Tuesday 15 December. Ṣaṣṭhī runs from 19:17 on Mon 14 Dec to 21:20 on Tue 15 Dec and covers all of madhyāhna that midday.

ahargana.org/ujjain/festivals/2026/champa-shashthi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 15 Dec
Ahargaṇa, classicalDisc centre, no refractionTue 15 Dec
compat-drikpanchangComparison profileTue 15 Dec
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/champa-shashthi · ruleset 2026.3-draft

Month
Mārgaśīrṣa, amānta
Pakṣa · aṅga
Śukla · Ṣaṣṭhī
Kāla
Madhyāhna
Priority
Paraviddhā
Tie-break
Second day
Reference
CRC 1955, p. 104

“S 6 Campa sasthi (Maharashtra) (paraviddha). (Special when combined with naksatra Satabhisaj, yoga Vyatipata and Sunday), Skanda sasthi (purvaviddha), Guha sasthi” Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104. The row calls the day special with Śatabhiṣaj nakṣatra, Vyatīpāta yoga and a Sunday; none is tested.

The same rule, elsewhere

Twelve places, west to east. Local clock times.

PlaceṢaṣṭhīMadhyāhna 14thCoveredMadhyāhna 15thCoveredRuled
Los Angeles05:47 → 07:5011:2448 min11:240 min14 Dec
Chicago07:47 → 09:5011:2148 min11:220 min14 Dec
Jersey City08:47 → 10:5011:2748 min11:270 min14 Dec
Port of Spain09:47 → 11:5011:3748 min11:3713 min15 Dec
London13:47 → 15:5011:310 min11:3248 min15 Dec
Durban15:47 → 17:5011:270 min11:2748 min15 Dec
Dubai17:47 → 19:5011:490 min11:5048 min15 Dec
Delhi19:17 → 21:2011:520 min11:5248 min15 Dec
Kolkata19:17 → 21:2011:070 min11:0848 min15 Dec
Singapore21:47 → 23:5012:350 min12:3648 min15 Dec
Sydney00:47 → 02:5012:260 min12:2648 min15 Dec
Suva01:47 → 03:5011:370 min11:3748 min15 Dec
Profile · tradition
pac-rp@2026.1 · smarta
Rule
champa-shashthi@2026.3-draft
Engine · kernel
0.1.0 · de440 7eef…ea74
Boundary margin
300 s