Ruling · Sūrya Ṣaṣṭhī (Chhath) · 1960

Tuesday 25 October

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 147 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 Tuesday 25 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 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

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

How it was decided

  1. 01

    Aṅga

    Ṣaṣṭhī runs from 09:11 on Tue 25 Oct to 06:49 on Wed 26 Oct.

    1960-10-25T01:11:17Z → 1960-10-25T22:49:10Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:38–12:26 on the 25th, 11:38–12:26 on the 26th.

    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 25th and 0 of 48 on the 26th.

    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 8805 s

  5. 05

    Ruling

    Sūrya Ṣaṣṭhī, Baoding, 1960: Tuesday 25 October.

    confidence: determinate

Say it like this

In Baoding, Sūrya Ṣaṣṭhī (Chhath) 1960 falls on Tuesday 25 October. Ṣaṣṭhī runs from 09:11 on Tue 25 Oct to 06:49 on Wed 26 Oct and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1960/surya-shashthi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 25 Oct
Ahargaṇa, classicalDisc centre, no refractionTue 25 Oct
compat-drikpanchangComparison profileTue 25 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 25thCoveredMadhyāhna 26thCoveredRuled
Los Angeles17:11 → 14:4911:1348 min11:130 min25 Oct
Chicago20:11 → 17:4912:1048 min12:100 min25 Oct
Jersey City21:11 → 18:4912:1648 min12:160 min25 Oct
Port of Spain21:11 → 18:4911:2648 min11:260 min25 Oct
London01:11 → 22:4911:2048 min11:200 min25 Oct
Durban03:11 → 00:4911:1648 min11:160 min25 Oct
Dubai05:11 → 02:4911:3948 min11:390 min25 Oct
Delhi06:41 → 04:1911:4148 min11:410 min25 Oct
Kolkata06:41 → 04:1910:5748 min10:560 min25 Oct
Singapore08:41 → 06:1911:5548 min11:550 min25 Oct
Sydney11:11 → 08:4911:1648 min11:150 min25 Oct
Suva13:11 → 10:4911:270 min11:260 min26 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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