Ruling · Skanda Ṣaṣṭhī · 1991

Thursday 12 December

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 539 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 Thursday 12 December

Taken. The only midday Ṣaṣṭhī reaches.

madhyāhna begins 11:47  12:35 madhyāhna ends
10:5911:2311:4712:1112:3512:5913:23

48 of 48 minutes covered

Midday of Friday 13 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

Ṣaṣṭhī presentMadhyāhna, the window the rule readsThe instant the tithi begins or ends

How it was decided

  1. 01

    Aṅga

    Ṣaṣṭhī runs from 00:22 on Thu 12 Dec to 02:49 on Fri 13 Dec.

    1991-12-11T16:22:29Z → 1991-12-12T18:49:11Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:47–12:35 on the 12th, 11:48–12:36 on the 13th.

    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 12th and 0 of 48 on the 13th.

    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 32326 s

  5. 05

    Ruling

    Skanda Ṣaṣṭhī, Baoding, 1991: Thursday 12 December.

    confidence: determinate

Say it like this

In Baoding, Skanda Ṣaṣṭhī 1991 falls on Thursday 12 December. Ṣaṣṭhī runs from 00:22 on Thu 12 Dec to 02:49 on Fri 13 Dec and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1991/skanda-shashthi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 12 Dec
Ahargaṇa, classicalDisc centre, no refractionThu 12 Dec
compat-drikpanchangComparison profileThu 12 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 11thCoveredMadhyāhna 12thCoveredRuled
Los Angeles08:22 → 10:4911:2248 min11:230 min11 Dec
Chicago10:22 → 12:4911:2048 min11:2048 min11 Dec
Jersey City11:22 → 13:4911:2548 min11:2648 min11 Dec
Port of Spain12:22 → 14:4911:351 min11:3648 min11 Dec
London16:22 → 18:4911:290 min11:3048 min12 Dec
Durban18:22 → 20:4911:250 min11:2548 min12 Dec
Dubai20:22 → 22:4911:480 min11:4848 min12 Dec
Delhi21:52 → 00:1911:500 min11:5048 min12 Dec
Kolkata21:52 → 00:1911:050 min11:0648 min12 Dec
Singapore00:22 → 02:4912:340 min12:3448 min12 Dec
Sydney03:22 → 05:4912:240 min12:2548 min12 Dec
Suva04:22 → 06:4911:350 min11:3648 min12 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

About Ahargaṇa