Ruling · Sūrya Ṣaṣṭhī (Chhath) · 1981

Monday 2 November

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

Decide it for

44°26′ N 26°06′ E · Europe/Bucharest · GeoNames 683506

The two middays

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

Midday of Monday 2 November

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

madhyāhna begins 11:35  12:23 madhyāhna ends
10:4711:1111:3511:5912:2312:4713:11

48 of 48 minutes covered

Midday of Tuesday 3 November

Qualifies with 48 of 48 minutes. Not taken.

madhyāhna begins 11:35  12:23 madhyāhna ends
Ṣaṣṭhī ends 12:53:54
10:4711:1111:3511:5912:2312:4713:11

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 10:41 on Mon 2 Nov to 12:54 on Tue 3 Nov.

    1981-11-02T08:40:56Z → 1981-11-03T10:53:55Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:35–12:23 on the 2nd, 11:35–12:23 on the 3rd.

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

  3. 03

    Rule

    Ṣaṣṭhī must be present during madhyāhna. It covers 48 of 48 minutes on the 2nd and 48 of 48 on the 3rd.

    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 1861 s

  5. 05

    Ruling

    Sūrya Ṣaṣṭhī, Bucharest, 1981: Monday 2 November.

    confidence: boundary (tie-break-unstated)

Say it like this

In Bucharest, Sūrya Ṣaṣṭhī (Chhath) 1981 falls on Monday 2 November. Ṣaṣṭhī runs from 10:41 on Mon 2 Nov to 12:54 on Tue 3 Nov and covers all of madhyāhna that midday. It also reaches the next midday for 48 minutes; the rule does not say which to take, and the one covered longer is ruled: treat the date as contested.

ahargana.org/bucharest/festivals/1981/surya-shashthi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingMon 2 Nov
Ahargaṇa, classicalDisc centre, no refractionMon 2 Nov
compat-drikpanchangComparison profileMon 2 Nov
No institution has a recorded ruling for Bucharest.

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 2ndCoveredMadhyāhna 3rdCoveredRuled
Los Angeles00:41 → 02:5411:1248 min11:120 min2 Nov
Chicago02:41 → 04:5411:1048 min11:100 min2 Nov
Jersey City03:41 → 05:5411:1648 min11:160 min2 Nov
Port of Spain04:41 → 06:5411:2648 min11:260 min2 Nov
London08:41 → 10:5411:2048 min11:200 min2 Nov
Durban10:41 → 12:5411:1648 min11:1648 min2 Nov
Dubai12:41 → 14:5411:380 min11:3848 min3 Nov
Delhi14:11 → 16:2411:410 min11:4148 min3 Nov
Kolkata14:11 → 16:2410:560 min10:5648 min3 Nov
Singapore16:11 → 18:2411:540 min11:5448 min3 Nov
Sydney19:41 → 21:5412:150 min12:1548 min3 Nov
Suva20:41 → 22:5411:260 min11:2648 min3 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

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