Ruling · Sūrya Ṣaṣṭhī (Chhath) · 1992

Saturday 31 October

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 575 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 Saturday 31 October

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

Midday of Sunday 1 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

Ṣaṣṭhī presentMadhyāhna, the window the rule readsThe instant the tithi begins or ends

How it was decided

  1. 01

    Aṅga

    Ṣaṣṭhī runs from 00:37 on Sat 31 Oct to 02:02 on Sun 1 Nov.

    1992-10-30T16:37:27Z → 1992-10-31T18:02:07Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:38–12:26 on the 31st, 11:38–12:26 on the 1st.

    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 31st and 0 of 48 on the 1st.

    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 34524 s

  5. 05

    Ruling

    Sūrya Ṣaṣṭhī, Baoding, 1992: Saturday 31 October.

    confidence: determinate

Say it like this

In Baoding, Sūrya Ṣaṣṭhī (Chhath) 1992 falls on Saturday 31 October. Ṣaṣṭhī runs from 00:37 on Sat 31 Oct to 02:02 on Sun 1 Nov and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1992/surya-shashthi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 31 Oct
Ahargaṇa, classicalDisc centre, no refractionSat 31 Oct
compat-drikpanchangComparison profileSat 31 Oct
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 30thCoveredMadhyāhna 31stCoveredRuled
Los Angeles08:37 → 10:0211:1248 min11:120 min30 Oct
Chicago10:37 → 12:0211:1048 min11:1048 min30 Oct
Jersey City11:37 → 13:0211:1626 min11:1648 min31 Oct
Port of Spain12:37 → 14:0211:260 min11:2648 min31 Oct
London16:37 → 18:0211:200 min11:2048 min31 Oct
Durban18:37 → 20:0211:160 min11:1648 min31 Oct
Dubai20:37 → 22:0211:380 min11:3848 min31 Oct
Delhi22:07 → 23:3211:410 min11:4148 min31 Oct
Kolkata22:07 → 23:3210:560 min10:5648 min31 Oct
Singapore00:37 → 02:0212:240 min12:2448 min31 Oct
Sydney03:37 → 05:0212:150 min12:1548 min31 Oct
Suva04:37 → 06:0211:260 min11:2648 min31 Oct
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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