Ruling · Sūrya Ṣaṣṭhī (Chhath) · 2070

Sunday 9 November

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 343 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 Saturday 8 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 9 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 18:09 on Sat 8 Nov to 20:32 on Sun 9 Nov.

    2070-11-08T10:08:45Z → 2070-11-09T12:31:33Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:38–12:26 on the 8th, 11:38–12:26 on the 9th.

    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 8th and 48 of 48 on the 9th.

    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 20578 s

  5. 05

    Ruling

    Sūrya Ṣaṣṭhī, Baoding, 2070: Sunday 9 November.

    confidence: determinate

Say it like this

In Baoding, Sūrya Ṣaṣṭhī (Chhath) 2070 falls on Sunday 9 November. Ṣaṣṭhī runs from 18:09 on Sat 8 Nov to 20:32 on Sun 9 Nov and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/2070/surya-shashthi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSun 9 Nov
Ahargaṇa, classicalDisc centre, no refractionSun 9 Nov
compat-drikpanchangComparison profileSun 9 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 8thCoveredMadhyāhna 9thCoveredRuled
Los Angeles02:09 → 04:3211:1348 min11:130 min8 Nov
Chicago04:09 → 06:3211:1048 min11:100 min8 Nov
Jersey City05:09 → 07:3211:1648 min11:160 min8 Nov
Port of Spain06:09 → 08:3211:2648 min11:260 min8 Nov
London10:09 → 12:3211:2048 min11:2048 min8 Nov
Durban12:09 → 14:3211:160 min11:1648 min9 Nov
Dubai14:09 → 16:3211:380 min11:3948 min9 Nov
Delhi15:39 → 18:0211:410 min11:4148 min9 Nov
Kolkata15:39 → 18:0210:560 min10:5648 min9 Nov
Singapore18:09 → 20:3212:240 min12:2548 min9 Nov
Sydney21:09 → 23:3212:150 min12:1548 min9 Nov
Suva22:09 → 00:3211:260 min11:2648 min9 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