Ruling · Sūrya Ṣaṣṭhī (Chhath) · 1951

Sunday 4 November

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 187 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 Sunday 4 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 Monday 5 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 08:30 on Sun 4 Nov to 06:03 on Mon 5 Nov.

    1951-11-04T00:30:10Z → 1951-11-04T22:03:17Z

  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 48 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

    Only one midday qualifies. No tie-break is needed.

    priority: unstated → only-day · margin 11242 s

  5. 05

    Ruling

    Sūrya Ṣaṣṭhī, Baoding, 1951: Sunday 4 November.

    confidence: determinate

Say it like this

In Baoding, Sūrya Ṣaṣṭhī (Chhath) 1951 falls on Sunday 4 November. Ṣaṣṭhī runs from 08:30 on Sun 4 Nov to 06:03 on Mon 5 Nov and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1951/surya-shashthi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSun 4 Nov
Ahargaṇa, classicalDisc centre, no refractionSun 4 Nov
compat-drikpanchangComparison profileSun 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 Angeles16:30 → 14:0311:1248 min11:120 min4 Nov
Chicago18:30 → 16:0311:1048 min11:100 min4 Nov
Jersey City19:30 → 17:0311:1648 min11:160 min4 Nov
Port of Spain20:30 → 18:0311:2648 min11:260 min4 Nov
London00:30 → 22:0311:2048 min11:200 min4 Nov
Durban02:30 → 00:0311:1648 min11:160 min4 Nov
Dubai04:30 → 02:0311:3848 min11:380 min4 Nov
Delhi06:00 → 03:3311:4148 min11:410 min4 Nov
Kolkata06:00 → 03:3310:5648 min10:560 min4 Nov
Singapore08:00 → 05:3311:5448 min11:540 min4 Nov
Sydney10:30 → 08:0311:1548 min11:150 min4 Nov
Suva12:30 → 10:0311:260 min11:260 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

About Ahargaṇa