Ruling · Sūrya Ṣaṣṭhī (Chhath) · 2061

Friday 18 November

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 579 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 Friday 18 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 Saturday 19 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 23:55 on Thu 17 Nov to 02:01 on Sat 19 Nov.

    2061-11-17T15:54:37Z → 2061-11-18T18:00:46Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:39–12:27 on the 18th, 11:39–12:27 on the 19th.

    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 18th and 0 of 48 on the 19th.

    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 34721 s

  5. 05

    Ruling

    Sūrya Ṣaṣṭhī, Baoding, 2061: Friday 18 November.

    confidence: determinate

Say it like this

In Baoding, Sūrya Ṣaṣṭhī (Chhath) 2061 falls on Friday 18 November. Ṣaṣṭhī runs from 23:55 on Thu 17 Nov to 02:01 on Sat 19 Nov and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/2061/surya-shashthi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingFri 18 Nov
Ahargaṇa, classicalDisc centre, no refractionFri 18 Nov
compat-drikpanchangComparison profileFri 18 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 17thCoveredMadhyāhna 18thCoveredRuled
Los Angeles07:55 → 10:0111:1448 min11:140 min17 Nov
Chicago09:55 → 12:0111:1248 min11:1248 min17 Nov
Jersey City10:55 → 13:0111:1748 min11:1748 min17 Nov
Port of Spain11:55 → 14:0111:2721 min11:2748 min18 Nov
London15:55 → 18:0111:210 min11:2248 min18 Nov
Durban17:55 → 20:0111:170 min11:1748 min18 Nov
Dubai19:55 → 22:0111:400 min11:4048 min18 Nov
Delhi21:25 → 23:3111:420 min11:4248 min18 Nov
Kolkata21:25 → 23:3110:580 min10:5848 min18 Nov
Singapore23:55 → 02:0112:260 min12:2648 min18 Nov
Sydney02:55 → 05:0112:160 min12:1748 min18 Nov
Suva03:55 → 06:0111:270 min11:2848 min18 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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