Ruling · Sūrya Ṣaṣṭhī (Chhath) · 1978

Monday 6 November

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 186 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 Sunday 5 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 Monday 6 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 17:51 on Sun 5 Nov to 15:32 on Mon 6 Nov.

    1978-11-05T09:50:55Z → 1978-11-06T07:32:02Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:38–12:26 on the 5th, 11:38–12:26 on the 6th.

    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 5th and 48 of 48 on the 6th.

    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 11187 s

  5. 05

    Ruling

    Sūrya Ṣaṣṭhī, Baoding, 1978: Monday 6 November.

    confidence: determinate

Say it like this

In Baoding, Sūrya Ṣaṣṭhī (Chhath) 1978 falls on Monday 6 November. Ṣaṣṭhī runs from 17:51 on Sun 5 Nov to 15:32 on Mon 6 Nov and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1978/surya-shashthi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingMon 6 Nov
Ahargaṇa, classicalDisc centre, no refractionMon 6 Nov
compat-drikpanchangComparison profileMon 6 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 5thCoveredMadhyāhna 6thCoveredRuled
Los Angeles01:51 → 23:3211:1248 min11:120 min5 Nov
Chicago03:51 → 01:3211:1048 min11:100 min5 Nov
Jersey City04:51 → 02:3211:1648 min11:160 min5 Nov
Port of Spain05:51 → 03:3211:2648 min11:260 min5 Nov
London09:51 → 07:3211:2048 min11:200 min5 Nov
Durban11:51 → 09:3211:1613 min11:160 min5 Nov
Dubai13:51 → 11:3211:380 min11:380 min6 Nov
Delhi15:21 → 13:0211:410 min11:4148 min6 Nov
Kolkata15:21 → 13:0210:560 min10:5648 min6 Nov
Singapore17:21 → 15:0211:540 min11:5448 min6 Nov
Sydney20:51 → 18:3212:150 min12:1548 min6 Nov
Suva21:51 → 19:3211:260 min11:2648 min6 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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