Ruling · Sūrya Ṣaṣṭhī (Chhath) · 2086

Tuesday 12 November

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 538 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 Tuesday 12 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

Midday of Wednesday 13 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 02:40 on Tue 12 Nov to 02:32 on Wed 13 Nov.

    2086-11-11T18:40:10Z → 2086-11-12T18:32:25Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:38–12:26 on the 12th, 11:38–12:26 on the 13th.

    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 12th and 0 of 48 on the 13th.

    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 32289 s

  5. 05

    Ruling

    Sūrya Ṣaṣṭhī, Baoding, 2086: Tuesday 12 November.

    confidence: determinate

Say it like this

In Baoding, Sūrya Ṣaṣṭhī (Chhath) 2086 falls on Tuesday 12 November. Ṣaṣṭhī runs from 02:40 on Tue 12 Nov to 02:32 on Wed 13 Nov and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/2086/surya-shashthi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 12 Nov
Ahargaṇa, classicalDisc centre, no refractionTue 12 Nov
compat-drikpanchangComparison profileTue 12 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 11thCoveredMadhyāhna 12thCoveredRuled
Los Angeles10:40 → 10:3211:1348 min11:130 min11 Nov
Chicago12:40 → 12:3211:110 min11:1148 min12 Nov
Jersey City13:40 → 13:3211:160 min11:1748 min12 Nov
Port of Spain14:40 → 14:3211:260 min11:2648 min12 Nov
London18:40 → 18:3211:200 min11:2148 min12 Nov
Durban20:40 → 20:3211:160 min11:1648 min12 Nov
Dubai22:40 → 22:3211:390 min11:3948 min12 Nov
Delhi00:10 → 00:0211:410 min11:4148 min12 Nov
Kolkata00:10 → 00:0210:570 min10:5748 min12 Nov
Singapore02:40 → 02:3212:250 min12:2548 min12 Nov
Sydney05:40 → 05:3212:160 min12:1648 min12 Nov
Suva06:40 → 06:3211:270 min11:2748 min12 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

About Ahargaṇa