Ruling · Sūrya Ṣaṣṭhī (Chhath) · 2027

Thursday 4 November

Determinatein Ujjain, under the Rashtriya Panchang method. Clear of every threshold by 418 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 Wednesday 3 November

Ṣaṣṭhī is absent from madhyāhna. Not taken.

madhyāhna begins 11:46  12:34 madhyāhna ends
10:5811:2211:4612:1012:3412:5813:22

0 of 48 minutes covered

Midday of Thursday 4 November

Taken. The only midday Ṣaṣṭhī reaches.

madhyāhna begins 11:46  12:34 madhyāhna ends
10:5811:2211:4612:1012:3412:5813:22

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 19:32 on Wed 3 Nov to 21:38 on Thu 4 Nov.

    2027-11-03T14:02:17Z → 2027-11-04T16:08:30Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:46–12:34 on the 3rd, 11:46–12:34 on the 4th.

    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 3rd and 48 of 48 on the 4th.

    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: unstated → only-day · margin 25078 s

  5. 05

    Ruling

    Sūrya Ṣaṣṭhī, Ujjain, 2027: Thursday 4 November.

    confidence: determinate

Say it like this

In Ujjain, Sūrya Ṣaṣṭhī (Chhath) 2027 falls on Thursday 4 November. Ṣaṣṭhī runs from 19:32 on Wed 3 Nov to 21:38 on Thu 4 Nov and covers all of madhyāhna that midday.

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

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 4 Nov
Ahargaṇa, classicalDisc centre, no refractionThu 4 Nov
compat-drikpanchangComparison profileThu 4 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/surya-shashthi · ruleset 2026.3-draft

Month
Kārtika, amānta
Pakṣa · aṅga
Śukla · Ṣaṣṭhī
Kāla
Madhyāhna
Priority
Unstated
Tie-break
Longer coverage, as a boundary
Reference
CRC 1955, p. 104

“S 6 Nadi sasthi, Skanda sasthi (Madras), Surya sasthi, Chhat (Bihar).” Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104.

The same rule, elsewhere

Twelve places, west to east. Local clock times.

PlaceṢaṣṭhīMadhyāhna 3rdCoveredMadhyāhna 4thCoveredRuled
Los Angeles07:02 → 09:0812:1248 min12:120 min3 Nov
Chicago09:02 → 11:0812:1048 min12:100 min3 Nov
Jersey City10:02 → 12:0812:1648 min12:160 min3 Nov
Port of Spain10:02 → 12:0811:2648 min11:2643 min3 Nov
London14:02 → 16:0811:200 min11:2048 min4 Nov
Durban16:02 → 18:0811:160 min11:1648 min4 Nov
Dubai18:02 → 20:0811:380 min11:3848 min4 Nov
Delhi19:32 → 21:3811:400 min11:4048 min4 Nov
Kolkata19:32 → 21:3810:560 min10:5648 min4 Nov
Singapore22:02 → 00:0812:240 min12:2448 min4 Nov
Sydney01:02 → 03:0812:150 min12:1548 min4 Nov
Suva02:02 → 04:0811:260 min11:2648 min4 Nov
Profile · tradition
pac-rp@2026.1 · smarta
Rule
surya-shashthi@2026.3-draft
Engine · kernel
0.1.0 · de440 7eef…ea74
Boundary margin
300 s