Ruling · Sūrya Ṣaṣṭhī (Chhath) · 2098

Thursday 30 October

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 224 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 29 October

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 Thursday 30 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

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

How it was decided

  1. 01

    Aṅga

    Ṣaṣṭhī runs from 16:10 on Wed 29 Oct to 17:38 on Thu 30 Oct.

    2098-10-29T08:09:44Z → 2098-10-30T09:37:38Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:38–12:26 on the 29th, 11:38–12:26 on the 30th.

    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 29th and 48 of 48 on the 30th.

    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 13428 s

  5. 05

    Ruling

    Sūrya Ṣaṣṭhī, Baoding, 2098: Thursday 30 October.

    confidence: determinate

Say it like this

In Baoding, Sūrya Ṣaṣṭhī (Chhath) 2098 falls on Thursday 30 October. Ṣaṣṭhī runs from 16:10 on Wed 29 Oct to 17:38 on Thu 30 Oct and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/2098/surya-shashthi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 30 Oct
Ahargaṇa, classicalDisc centre, no refractionThu 30 Oct
compat-drikpanchangComparison profileThu 30 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 29thCoveredMadhyāhna 30thCoveredRuled
Los Angeles01:10 → 02:3812:1348 min12:130 min29 Oct
Chicago03:10 → 04:3812:1048 min12:100 min29 Oct
Jersey City04:10 → 05:3812:1648 min12:160 min29 Oct
Port of Spain04:10 → 05:3811:2648 min11:260 min29 Oct
London08:10 → 09:3811:2048 min11:200 min29 Oct
Durban10:10 → 11:3811:1648 min11:1622 min29 Oct
Dubai12:10 → 13:3811:3917 min11:3948 min30 Oct
Delhi13:40 → 15:0811:410 min11:4148 min30 Oct
Kolkata13:40 → 15:0810:560 min10:5648 min30 Oct
Singapore16:10 → 17:3812:250 min12:2548 min30 Oct
Sydney19:10 → 20:3812:150 min12:1548 min30 Oct
Suva20:10 → 21:3811:260 min11:2648 min30 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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