Ruling · Sūrya Ṣaṣṭhī (Chhath) · 1945

Sunday 11 November

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 353 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 Saturday 10 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

Midday of Sunday 11 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

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

How it was decided

  1. 01

    Aṅga

    Ṣaṣṭhī runs from 18:18 on Sat 10 Nov to 19:21 on Sun 11 Nov.

    1945-11-10T10:18:26Z → 1945-11-11T11:20:32Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:38–12:26 on the 10th, 11:38–12:26 on the 11th.

    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 10th and 48 of 48 on the 11th.

    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 21153 s

  5. 05

    Ruling

    Sūrya Ṣaṣṭhī, Baoding, 1945: Sunday 11 November.

    confidence: determinate

Say it like this

In Baoding, Sūrya Ṣaṣṭhī (Chhath) 1945 falls on Sunday 11 November. Ṣaṣṭhī runs from 18:18 on Sat 10 Nov to 19:21 on Sun 11 Nov and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1945/surya-shashthi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSun 11 Nov
Ahargaṇa, classicalDisc centre, no refractionSun 11 Nov
compat-drikpanchangComparison profileSun 11 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 10thCoveredMadhyāhna 11thCoveredRuled
Los Angeles02:18 → 03:2111:1348 min11:130 min10 Nov
Chicago04:18 → 05:2111:1048 min11:100 min10 Nov
Jersey City05:18 → 06:2111:1648 min11:160 min10 Nov
Port of Spain06:18 → 07:2111:2648 min11:260 min10 Nov
London10:18 → 11:2111:2048 min11:200 min10 Nov
Durban12:18 → 13:2111:160 min11:1648 min11 Nov
Dubai14:18 → 15:2111:390 min11:3948 min11 Nov
Delhi15:48 → 16:5111:410 min11:4148 min11 Nov
Kolkata15:48 → 16:5110:560 min10:5648 min11 Nov
Singapore17:48 → 18:5111:550 min11:5548 min11 Nov
Sydney20:18 → 21:2111:150 min11:1548 min11 Nov
Suva22:18 → 23:2111:260 min11:2648 min11 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