Ruling · Skanda Ṣaṣṭhī · 1966

Saturday 17 December

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 6 min 35 s.

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 Saturday 17 December

Taken. Both middays qualify; the rule takes the first.

madhyāhna begins 11:50  12:38 madhyāhna ends
Ṣaṣṭhī begins 11:56:32
11:0211:2611:5012:1412:3813:0213:26

41 of 48 minutes covered, the last 41

Midday of Sunday 18 December

Qualifies with 48 of 48 minutes. Not taken.

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 11:57 on Sat 17 Dec to 13:57 on Sun 18 Dec.

    1966-12-17T03:56:32Z → 1966-12-18T05:56:55Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:50–12:38 on the 17th, 11:50–12:38 on the 18th.

    madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′

  3. 03

    Rule

    Ṣaṣṭhī must be present during madhyāhna. It covers 41 of 48 minutes on the 17th and 48 of 48 on the 18th.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104

  4. 04

    Tie-break

    Both middays qualify. Pūrvaviddhā: the first is taken.

    priority: purvaviddha → purvaviddha · margin 395 s

  5. 05

    Ruling

    Skanda Ṣaṣṭhī, Baoding, 1966: Saturday 17 December.

    confidence: determinate

Say it like this

In Baoding, Skanda Ṣaṣṭhī 1966 falls on Saturday 17 December. Ṣaṣṭhī runs from 11:57 on Sat 17 Dec to 13:57 on Sun 18 Dec and covers 41 of 48 minutes of madhyāhna that midday. It also reaches the next midday for 48 minutes; by the rule the first midday is taken.

ahargana.org/baoding/festivals/1966/skanda-shashthi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 17 Dec
Ahargaṇa, classicalDisc centre, no refractionSat 17 Dec
compat-drikpanchangComparison profileSat 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 17thCoveredMadhyāhna 18thCoveredRuled
Los Angeles19:57 → 21:5711:2548 min11:260 min17 Dec
Chicago21:57 → 23:5711:2348 min11:230 min17 Dec
Jersey City22:57 → 00:5711:2848 min11:290 min17 Dec
Port of Spain23:57 → 01:5711:3848 min11:390 min17 Dec
London03:57 → 05:5711:3248 min11:330 min17 Dec
Durban05:57 → 07:5711:2848 min11:280 min17 Dec
Dubai07:57 → 09:5711:5148 min11:510 min17 Dec
Delhi09:27 → 11:2711:5348 min11:530 min17 Dec
Kolkata09:27 → 11:2711:0848 min11:0918 min17 Dec
Singapore11:27 → 13:2712:0648 min12:0748 min17 Dec
Sydney13:57 → 15:5711:270 min11:2748 min18 Dec
Suva15:57 → 17:5711:380 min11:3948 min18 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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