Ruling · Sūrya Ṣaṣṭhī (Chhath) · 2080

Sunday 17 November

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 313 minutes.

Decide it for

BaodingDelhiKolkataSingaporeSydneyJersey City

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 17 November

Taken. The only midday Ṣaṣṭhī reaches.

madhyāhna begins 11:39  12:27 madhyāhna ends
10:5111:1511:3912:0312:2712:5113:15

48 of 48 minutes covered

Midday of Monday 18 November

Ṣaṣṭhī is absent from madhyāhna. Not taken.

madhyāhna begins 11:39  12:27 madhyāhna ends
10:5111:1511:3912:0312:2712:5113:15

0 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 04:02 on Sun 17 Nov to 06:26 on Mon 18 Nov.

    2080-11-16T20:01:39Z → 2080-11-17T22:25:59Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:39–12:27 on the 17th, 11:39–12:27 on the 18th.

    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 17th and 0 of 48 on the 18th.

    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 18804 s

  5. 05

    Ruling

    Sūrya Ṣaṣṭhī, Baoding, 2080: Sunday 17 November.

    confidence: determinate

Say it like this

In Baoding, Sūrya Ṣaṣṭhī (Chhath) 2080 falls on Sunday 17 November. Ṣaṣṭhī runs from 04:02 on Sun 17 Nov to 06:26 on Mon 18 Nov and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/2080/surya-shashthi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSun 17 Nov
Ahargaṇa, classicalDisc centre, no refractionSun 17 Nov
compat-drikpanchangComparison profileSun 17 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/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 16thCoveredMadhyāhna 17thCoveredRuled
Los Angeles12:02 → 14:2611:140 min11:1448 min17 Nov
Chicago14:02 → 16:2611:120 min11:1248 min17 Nov
Jersey City15:02 → 17:2611:170 min11:1748 min17 Nov
Port of Spain16:02 → 18:2611:270 min11:2748 min17 Nov
London20:02 → 22:2611:210 min11:2248 min17 Nov
Durban22:02 → 00:2611:170 min11:1748 min17 Nov
Dubai00:02 → 02:2611:400 min11:4048 min17 Nov
Delhi01:32 → 03:5611:420 min11:4248 min17 Nov
Kolkata01:32 → 03:5610:570 min10:5848 min17 Nov
Singapore04:02 → 06:2612:260 min12:2648 min17 Nov
Sydney07:02 → 09:2612:160 min12:1748 min17 Nov
Suva08:02 → 10:2611:270 min11:2848 min17 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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