Ruling · Skanda Ṣaṣṭhī · 1967

Thursday 7 December

Boundaryin Baoding, under the Rashtriya Panchang method. A threshold is only 1 min 57 s away. Say “contested”.

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 Wednesday 6 December

Ṣaṣṭhī is absent from madhyāhna. Not taken.

madhyāhna begins 11:45  12:33 madhyāhna ends
Ṣaṣṭhī begins 12:38:24
10:5711:2111:4512:0912:3312:5713:21

0 of 48 minutes covered

Midday of Thursday 7 December

Taken. The only midday Ṣaṣṭhī reaches.

madhyāhna begins 11:45  12:33 madhyāhna ends
Ṣaṣṭhī ends 12:31:14
10:5711:2111:4512:0912:3312:5713:21

46 of 48 minutes covered, the first 46

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

How it was decided

  1. 01

    Aṅga

    Ṣaṣṭhī runs from 12:38 on Wed 6 Dec to 12:31 on Thu 7 Dec.

    1967-12-06T04:38:24Z → 1967-12-07T04:31:14Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:45–12:33 on the 6th, 11:45–12:33 on the 7th.

    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 6th and 46 of 48 on the 7th.

    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 117 s < 300 s

  5. 05

    Ruling

    Skanda Ṣaṣṭhī, Baoding, 1967: Thursday 7 December.

    confidence: boundary (margin)

Say it like this

In Baoding, Skanda Ṣaṣṭhī 1967 falls on Thursday 7 December. Ṣaṣṭhī runs from 12:38 on Wed 6 Dec to 12:31 on Thu 7 Dec and covers 46 of 48 minutes of madhyāhna that midday. It is 1 min 57 s from a threshold: treat the date as contested.

ahargana.org/baoding/festivals/1967/skanda-shashthi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 7 Dec
Ahargaṇa, classicalDisc centre, no refractionThu 7 Dec
compat-drikpanchangComparison profileWed 6 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 6thCoveredMadhyāhna 7thCoveredRuled
Los Angeles20:38 → 20:3111:2048 min11:200 min6 Dec
Chicago22:38 → 22:3111:1748 min11:180 min6 Dec
Jersey City23:38 → 23:3111:2348 min11:240 min6 Dec
Port of Spain00:38 → 00:3111:3348 min11:330 min6 Dec
London04:38 → 04:3111:2748 min11:280 min6 Dec
Durban06:38 → 06:3111:2348 min11:230 min6 Dec
Dubai08:38 → 08:3111:4548 min11:460 min6 Dec
Delhi10:08 → 10:0111:4848 min11:480 min6 Dec
Kolkata10:08 → 10:0111:0348 min11:040 min6 Dec
Singapore12:08 → 12:0112:0141 min12:020 min6 Dec
Sydney14:38 → 14:3111:220 min11:2248 min7 Dec
Suva16:38 → 16:3111:330 min11:3348 min7 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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