Ruling · Sūrya Ṣaṣṭhī (Chhath) · 1940

Tuesday 5 November

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 239 minutes.

Decide it for

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 Monday 4 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 Tuesday 5 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 17:00 on Mon 4 Nov to 16:25 on Tue 5 Nov.

    1940-11-04T08:59:59Z → 1940-11-05T08:24:53Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:38–12:26 on the 4th, 11:38–12:26 on the 5th.

    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 4th and 48 of 48 on the 5th.

    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 14359 s

  5. 05

    Ruling

    Sūrya Ṣaṣṭhī, Baoding, 1940: Tuesday 5 November.

    confidence: determinate

Say it like this

In Baoding, Sūrya Ṣaṣṭhī (Chhath) 1940 falls on Tuesday 5 November. Ṣaṣṭhī runs from 17:00 on Mon 4 Nov to 16:25 on Tue 5 Nov and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1940/surya-shashthi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 5 Nov
Ahargaṇa, classicalDisc centre, no refractionTue 5 Nov
compat-drikpanchangComparison profileTue 5 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 4thCoveredMadhyāhna 5thCoveredRuled
Los Angeles01:00 → 00:2511:1248 min11:120 min4 Nov
Chicago03:00 → 02:2511:1048 min11:100 min4 Nov
Jersey City04:00 → 03:2511:1648 min11:160 min4 Nov
Port of Spain05:00 → 04:2511:2648 min11:260 min4 Nov
London10:00 → 09:2512:2048 min12:200 min4 Nov
Durban11:00 → 10:2511:1648 min11:160 min4 Nov
Dubai13:00 → 12:2511:380 min11:3847 min5 Nov
Delhi14:30 → 13:5511:410 min11:4148 min5 Nov
Kolkata14:30 → 13:5510:560 min10:5648 min5 Nov
Singapore16:20 → 15:4511:440 min11:4448 min5 Nov
Sydney19:00 → 18:2511:150 min11:1548 min5 Nov
Suva21:00 → 20:2511:260 min11:2648 min5 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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