Ruling · Sūrya Ṣaṣṭhī (Chhath) · 1999

Sunday 14 November

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 541 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 Sunday 14 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 15 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 00:19 on Sun 14 Nov to 02:38 on Mon 15 Nov.

    1999-11-13T16:19:25Z → 1999-11-14T18:37:46Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:38–12:26 on the 14th, 11:38–12:26 on the 15th.

    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 14th and 0 of 48 on the 15th.

    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 32440 s

  5. 05

    Ruling

    Sūrya Ṣaṣṭhī, Baoding, 1999: Sunday 14 November.

    confidence: determinate

Say it like this

In Baoding, Sūrya Ṣaṣṭhī (Chhath) 1999 falls on Sunday 14 November. Ṣaṣṭhī runs from 00:19 on Sun 14 Nov to 02:38 on Mon 15 Nov and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1999/surya-shashthi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSun 14 Nov
Ahargaṇa, classicalDisc centre, no refractionSun 14 Nov
compat-drikpanchangComparison profileSun 14 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 13thCoveredMadhyāhna 14thCoveredRuled
Los Angeles08:19 → 10:3811:1348 min11:130 min13 Nov
Chicago10:19 → 12:3811:1148 min11:1148 min13 Nov
Jersey City11:19 → 13:3811:1645 min11:1748 min14 Nov
Port of Spain12:19 → 14:3811:260 min11:2648 min14 Nov
London16:19 → 18:3811:200 min11:2148 min14 Nov
Durban18:19 → 20:3811:160 min11:1648 min14 Nov
Dubai20:19 → 22:3811:390 min11:3948 min14 Nov
Delhi21:49 → 00:0811:410 min11:4148 min14 Nov
Kolkata21:49 → 00:0810:570 min10:5748 min14 Nov
Singapore00:19 → 02:3812:250 min12:2548 min14 Nov
Sydney03:19 → 05:3812:160 min12:1648 min14 Nov
Suva05:19 → 07:3812:270 min12:2748 min14 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

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