Ruling · Sūrya Ṣaṣṭhī (Chhath) · 2036

Saturday 25 October

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 235 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 Friday 24 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 Saturday 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

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

How it was decided

  1. 01

    Aṅga

    Ṣaṣṭhī runs from 16:21 on Fri 24 Oct to 17:52 on Sat 25 Oct.

    2036-10-24T08:20:42Z → 2036-10-25T09:51:43Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:38–12:26 on the 24th, 11:38–12:26 on the 25th.

    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 24th and 48 of 48 on the 25th.

    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 14078 s

  5. 05

    Ruling

    Sūrya Ṣaṣṭhī, Baoding, 2036: Saturday 25 October.

    confidence: determinate

Say it like this

In Baoding, Sūrya Ṣaṣṭhī (Chhath) 2036 falls on Saturday 25 October. Ṣaṣṭhī runs from 16:21 on Fri 24 Oct to 17:52 on Sat 25 Oct and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/2036/surya-shashthi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 25 Oct
Ahargaṇa, classicalDisc centre, no refractionSat 25 Oct
compat-drikpanchangComparison profileSat 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 24thCoveredMadhyāhna 25thCoveredRuled
Los Angeles01:21 → 02:5212:1348 min12:130 min24 Oct
Chicago03:21 → 04:5212:1048 min12:100 min24 Oct
Jersey City04:21 → 05:5212:1648 min12:160 min24 Oct
Port of Spain04:21 → 05:5211:2648 min11:260 min24 Oct
London09:21 → 10:5212:2048 min12:200 min24 Oct
Durban10:21 → 11:5211:1648 min11:1636 min24 Oct
Dubai12:21 → 13:5211:396 min11:3948 min25 Oct
Delhi13:51 → 15:2211:410 min11:4148 min25 Oct
Kolkata13:51 → 15:2210:570 min10:5648 min25 Oct
Singapore16:21 → 17:5212:250 min12:2548 min25 Oct
Sydney19:21 → 20:5212:160 min12:1648 min25 Oct
Suva20:21 → 21:5211:270 min11:2748 min25 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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