Ruling · Skanda Ṣaṣṭhī · 1901

Tuesday 17 December

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 300 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 Monday 16 December

Ṣaṣṭhī is absent from madhyāhna. Not taken.

madhyāhna begins 11:49  12:37 madhyāhna ends
11:0111:2511:4912:1312:3713:0113:25

0 of 48 minutes covered

Midday of Tuesday 17 December

Taken. The only midday Ṣaṣṭhī reaches.

madhyāhna begins 11:50  12:38 madhyāhna ends
11:0211:2611:5012:1412:3813:0213:26

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 17:39 on Mon 16 Dec to 17:38 on Tue 17 Dec.

    1901-12-16T09:39:07Z → 1901-12-17T09:37:57Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:49–12:37 on the 16th, 11:50–12:38 on the 17th.

    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 16th and 48 of 48 on the 17th.

    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: purvaviddha → only-day · margin 17998 s

  5. 05

    Ruling

    Skanda Ṣaṣṭhī, Baoding, 1901: Tuesday 17 December.

    confidence: determinate

Say it like this

In Baoding, Skanda Ṣaṣṭhī 1901 falls on Tuesday 17 December. Ṣaṣṭhī runs from 17:39 on Mon 16 Dec to 17:38 on Tue 17 Dec and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1901/skanda-shashthi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 17 Dec
Ahargaṇa, classicalDisc centre, no refractionTue 17 Dec
compat-drikpanchangComparison profileTue 17 Dec
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/skanda-shashthi · ruleset 2026.3-draft

Month
Mārgaśīrṣa, amānta
Pakṣa · aṅga
Śukla · Ṣaṣṭhī
Kāla
Madhyāhna
Priority
Pūrvaviddhā
Tie-break
First day
Reference
CRC 1955, p. 104

“S 6 Campa sasthi (Maharashtra) (paraviddha). (Special when combined with naksatra Satabhisaj, yoga Vyatipata and Sunday), Skanda sasthi (purvaviddha), Guha sasthi” Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104.

The same rule, elsewhere

Twelve places, west to east. Local clock times.

PlaceṢaṣṭhīMadhyāhna 16thCoveredMadhyāhna 17thCoveredRuled
Los Angeles01:39 → 01:3811:2548 min11:250 min16 Dec
Chicago03:39 → 03:3811:2248 min11:230 min16 Dec
Jersey City04:39 → 04:3811:2848 min11:280 min16 Dec
Port of Spain05:39 → 05:3811:3848 min11:380 min16 Dec
London09:39 → 09:3811:3248 min11:320 min16 Dec
Durban11:09 → 11:0810:5736 min10:5810 min16 Dec
Dubai13:20 → 13:1911:310 min11:3248 min17 Dec
Delhi15:00 → 14:5911:430 min11:4448 min17 Dec
Kolkata15:00 → 14:5910:590 min10:5948 min17 Dec
Singapore16:34 → 16:3311:310 min11:3148 min17 Dec
Sydney19:39 → 19:3811:270 min11:2748 min17 Dec
Suva21:34 → 21:3311:330 min11:3348 min17 Dec
Profile · tradition
pac-rp@2026.1 · smarta
Rule
skanda-shashthi@2026.3-draft
Engine · kernel
0.1.0 · de440 7eef…ea74
Boundary margin
300 s

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