Ruling · Sūrya Ṣaṣṭhī (Chhath) · 1970

Thursday 5 November

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 11 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 Wednesday 4 November

Ṣaṣṭhī is absent from madhyāhna. Not taken.

madhyāhna begins 11:38  12:26 madhyāhna ends
Ṣaṣṭhī begins 12:36:43
10:5011:1411:3812:0212:2612:5013:14

0 of 48 minutes covered

Midday of Thursday 5 November

Taken. Ṣaṣṭhī reaches neither midday; the rule takes the second day.

madhyāhna begins 11:38  12:26 madhyāhna ends
Ṣaṣṭhī ends 11:16:22
10:5011:1411:3812:0212:2612:5013:14

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 12:37 on Wed 4 Nov to 11:16 on Thu 5 Nov.

    1970-11-04T04:36:43Z → 1970-11-05T03:16:23Z

  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 0 of 48 on the 5th.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104

  4. 04

    Tie-break

    Neither midday qualifies. The rule takes the second day.

    priority: unstated → second-day · margin 672 s

  5. 05

    Ruling

    Sūrya Ṣaṣṭhī, Baoding, 1970: Thursday 5 November.

    confidence: determinate

Say it like this

In Baoding, Sūrya Ṣaṣṭhī (Chhath) 1970 falls on Thursday 5 November. Ṣaṣṭhī runs from 12:37 on Wed 4 Nov to 11:16 on Thu 5 Nov, and reaches madhyāhna on neither day.

ahargana.org/baoding/festivals/1970/surya-shashthi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 5 Nov
Ahargaṇa, classicalDisc centre, no refractionThu 5 Nov
compat-drikpanchangComparison profileWed 4 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 Angeles20:37 → 19:1611:1248 min11:120 min4 Nov
Chicago22:37 → 21:1611:1048 min11:100 min4 Nov
Jersey City23:37 → 22:1611:1648 min11:160 min4 Nov
Port of Spain00:37 → 23:1611:2648 min11:260 min4 Nov
London05:37 → 04:1612:2048 min12:200 min4 Nov
Durban06:37 → 05:1611:1648 min11:160 min4 Nov
Dubai08:37 → 07:1611:3848 min11:380 min4 Nov
Delhi10:07 → 08:4611:4148 min11:410 min4 Nov
Kolkata10:07 → 08:4610:5648 min10:560 min4 Nov
Singapore12:07 → 10:4611:5435 min11:540 min4 Nov
Sydney14:37 → 13:1611:150 min11:1548 min5 Nov
Suva16:37 → 15:1611:260 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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