Ruling · Skanda Ṣaṣṭhī · 1931

Tuesday 15 December

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 82 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 14 December

Ṣaṣṭhī is absent from madhyāhna. Not taken.

madhyāhna begins 11:48  12:36 madhyāhna ends
11:0011:2411:4812:1212:3613:0013:24

0 of 48 minutes covered

Midday of Tuesday 15 December

Taken. The only midday Ṣaṣṭhī reaches.

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

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 13:58 on Mon 14 Dec to 15:23 on Tue 15 Dec.

    1931-12-14T05:57:54Z → 1931-12-15T07:23:25Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:48–12:36 on the 14th, 11:49–12:37 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 0 of 48 minutes on the 14th and 48 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: purvaviddha → only-day · margin 4895 s

  5. 05

    Ruling

    Skanda Ṣaṣṭhī, Baoding, 1931: Tuesday 15 December.

    confidence: determinate

Say it like this

In Baoding, Skanda Ṣaṣṭhī 1931 falls on Tuesday 15 December. Ṣaṣṭhī runs from 13:58 on Mon 14 Dec to 15:23 on Tue 15 Dec and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1931/skanda-shashthi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 15 Dec
Ahargaṇa, classicalDisc centre, no refractionTue 15 Dec
compat-drikpanchangComparison profileTue 15 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 14thCoveredMadhyāhna 15thCoveredRuled
Los Angeles21:58 → 23:2311:2348 min11:240 min14 Dec
Chicago23:58 → 01:2311:2148 min11:220 min14 Dec
Jersey City00:58 → 02:2311:2748 min11:270 min14 Dec
Port of Spain01:58 → 03:2311:3748 min11:370 min14 Dec
London05:58 → 07:2311:3148 min11:310 min14 Dec
Durban07:58 → 09:2311:2648 min11:270 min14 Dec
Dubai09:58 → 11:2311:4948 min11:500 min14 Dec
Delhi11:28 → 12:5311:5148 min11:5248 min14 Dec
Kolkata11:28 → 12:5311:0727 min11:0748 min14 Dec
Singapore12:58 → 14:2311:350 min11:3548 min15 Dec
Sydney15:58 → 17:2311:250 min11:2648 min15 Dec
Suva17:58 → 19:2311:360 min11:3748 min15 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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