Ruling · Sūrya Ṣaṣṭhī (Chhath) · 2003

Thursday 30 October

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 421 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 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

Midday of Friday 31 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

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

How it was decided

  1. 01

    Aṅga

    Ṣaṣṭhī runs from 04:37 on Thu 30 Oct to 02:29 on Fri 31 Oct.

    2003-10-29T20:36:46Z → 2003-10-30T18:28:35Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:38–12:26 on the 30th, 11:38–12:26 on the 31st.

    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 30th and 0 of 48 on the 31st.

    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 25251 s

  5. 05

    Ruling

    Sūrya Ṣaṣṭhī, Baoding, 2003: Thursday 30 October.

    confidence: determinate

Say it like this

In Baoding, Sūrya Ṣaṣṭhī (Chhath) 2003 falls on Thursday 30 October. Ṣaṣṭhī runs from 04:37 on Thu 30 Oct to 02:29 on Fri 31 Oct and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/2003/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 Angeles12:37 → 10:2911:120 min11:120 min30 Oct
Chicago14:37 → 12:2911:100 min11:1048 min30 Oct
Jersey City15:37 → 13:2911:160 min11:1648 min30 Oct
Port of Spain16:37 → 14:2911:260 min11:2648 min30 Oct
London20:37 → 18:2911:200 min11:2048 min30 Oct
Durban22:37 → 20:2911:160 min11:1648 min30 Oct
Dubai00:37 → 22:2911:380 min11:3848 min30 Oct
Delhi02:07 → 23:5911:410 min11:4148 min30 Oct
Kolkata02:07 → 23:5910:560 min10:5648 min30 Oct
Singapore04:37 → 02:2912:240 min12:2448 min30 Oct
Sydney07:37 → 05:2912:150 min12:1548 min30 Oct
Suva08:37 → 06:2911:260 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

About Ahargaṇa