Ruling · Sūrya Ṣaṣṭhī (Chhath) · 2097

Sunday 10 November

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 421 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 Saturday 9 November

Ṣaṣṭhī is absent from madhyāhna. Not taken.

madhyāhna begins 11:38  12:26 madhyāhna ends
10:5011:1411:3812:0212:2612:5013:14

0 of 48 minutes covered

Midday of Sunday 10 November

Taken. The only midday Ṣaṣṭhī reaches.

madhyāhna begins 11:38  12:26 madhyāhna ends
10:5011:1411:3812:0212:2612:5013:14

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 19:27 on Sat 9 Nov to 22:00 on Sun 10 Nov.

    2097-11-09T11:27:20Z → 2097-11-10T13:59:31Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:38–12:26 on the 9th, 11:38–12:26 on the 10th.

    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 9th and 48 of 48 on the 10th.

    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 25275 s

  5. 05

    Ruling

    Sūrya Ṣaṣṭhī, Baoding, 2097: Sunday 10 November.

    confidence: determinate

Say it like this

In Baoding, Sūrya Ṣaṣṭhī (Chhath) 2097 falls on Sunday 10 November. Ṣaṣṭhī runs from 19:27 on Sat 9 Nov to 22:00 on Sun 10 Nov and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/2097/surya-shashthi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSun 10 Nov
Ahargaṇa, classicalDisc centre, no refractionSun 10 Nov
compat-drikpanchangComparison profileSun 10 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 9thCoveredMadhyāhna 10thCoveredRuled
Los Angeles03:27 → 06:0011:1348 min11:130 min9 Nov
Chicago05:27 → 08:0011:1148 min11:110 min9 Nov
Jersey City06:27 → 09:0011:1648 min11:160 min9 Nov
Port of Spain07:27 → 10:0011:2648 min11:260 min9 Nov
London11:27 → 14:0011:2041 min11:2048 min10 Nov
Durban13:27 → 16:0011:160 min11:1648 min10 Nov
Dubai15:27 → 18:0011:390 min11:3948 min10 Nov
Delhi16:57 → 19:3011:410 min11:4148 min10 Nov
Kolkata16:57 → 19:3010:570 min10:5748 min10 Nov
Singapore19:27 → 22:0012:250 min12:2548 min10 Nov
Sydney22:27 → 01:0012:160 min12:1648 min10 Nov
Suva23:27 → 02:0011:270 min11:2748 min10 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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