Ruling · Sūrya Ṣaṣṭhī (Chhath) · 1949

Thursday 27 October

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 54 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 26 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 27 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 14:31 on Wed 26 Oct to 13:20 on Thu 27 Oct.

    1949-10-26T06:30:52Z → 1949-10-27T05:19:35Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:38–12:26 on the 26th, 11:38–12:26 on the 27th.

    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 26th and 48 of 48 on the 27th.

    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 3224 s

  5. 05

    Ruling

    Sūrya Ṣaṣṭhī, Baoding, 1949: Thursday 27 October.

    confidence: determinate

Say it like this

In Baoding, Sūrya Ṣaṣṭhī (Chhath) 1949 falls on Thursday 27 October. Ṣaṣṭhī runs from 14:31 on Wed 26 Oct to 13:20 on Thu 27 Oct and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1949/surya-shashthi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 27 Oct
Ahargaṇa, classicalDisc centre, no refractionThu 27 Oct
compat-drikpanchangComparison profileThu 27 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 26thCoveredMadhyāhna 27thCoveredRuled
Los Angeles22:31 → 21:2011:1348 min11:130 min26 Oct
Chicago00:31 → 23:2011:1048 min11:100 min26 Oct
Jersey City01:31 → 00:2011:1648 min11:160 min26 Oct
Port of Spain02:31 → 01:2011:2648 min11:260 min26 Oct
London07:31 → 06:2012:2048 min12:200 min26 Oct
Durban08:31 → 07:2011:1648 min11:160 min26 Oct
Dubai10:31 → 09:2011:3948 min11:390 min26 Oct
Delhi12:01 → 10:5011:4128 min11:410 min26 Oct
Kolkata12:01 → 10:5010:560 min10:560 min27 Oct
Singapore14:01 → 12:5011:550 min11:5548 min27 Oct
Sydney16:31 → 15:2011:160 min11:1548 min27 Oct
Suva18:31 → 17:2011:270 min11:2648 min27 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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