Ruling · Sūrya Ṣaṣṭhī (Chhath) · 2064

Friday 14 November

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 156 minutes.

Decide it for

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 Thursday 13 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 Friday 14 November

Taken. The only midday Ṣaṣṭhī reaches.

madhyāhna begins 11:39  12:27 madhyāhna ends
10:5111:1511:3912:0312:2712:5113:15

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 15:17 on Thu 13 Nov to 15:02 on Fri 14 Nov.

    2064-11-13T07:17:01Z → 2064-11-14T07:02:02Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:38–12:26 on the 13th, 11:39–12:27 on the 14th.

    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 13th and 48 of 48 on the 14th.

    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 9330 s

  5. 05

    Ruling

    Sūrya Ṣaṣṭhī, Baoding, 2064: Friday 14 November.

    confidence: determinate

Say it like this

In Baoding, Sūrya Ṣaṣṭhī (Chhath) 2064 falls on Friday 14 November. Ṣaṣṭhī runs from 15:17 on Thu 13 Nov to 15:02 on Fri 14 Nov and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/2064/surya-shashthi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingFri 14 Nov
Ahargaṇa, classicalDisc centre, no refractionFri 14 Nov
compat-drikpanchangComparison profileFri 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 Angeles23:17 → 23:0211:1348 min11:130 min13 Nov
Chicago01:17 → 01:0211:1148 min11:110 min13 Nov
Jersey City02:17 → 02:0211:1748 min11:170 min13 Nov
Port of Spain03:17 → 03:0211:2748 min11:270 min13 Nov
London07:17 → 07:0211:2148 min11:210 min13 Nov
Durban09:17 → 09:0211:1748 min11:170 min13 Nov
Dubai11:17 → 11:0211:3948 min11:390 min13 Nov
Delhi12:47 → 12:3211:410 min11:4248 min14 Nov
Kolkata12:47 → 12:3210:570 min10:5748 min14 Nov
Singapore15:17 → 15:0212:250 min12:2548 min14 Nov
Sydney18:17 → 18:0212:160 min12:1648 min14 Nov
Suva19:17 → 19:0211:270 min11:2748 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

About Ahargaṇa