Ruling · Skanda Ṣaṣṭhī · 1913

Wednesday 3 December

Determinatein Daqing, under the Rashtriya Panchang method. Clear of every threshold by 213 minutes.

Decide it for

46°35′ N 125°00′ E · Asia/Shanghai · GeoNames 2037860

The two middays

One ghaṭī is 24 minutes. Madhyāhna is 1 ghaṭikā either side of midday.

Midday of Wednesday 3 December

Taken. The only midday Ṣaṣṭhī reaches.

madhyāhna begins 11:05  11:53 madhyāhna ends
10:1710:4111:0511:2911:5312:1712:41

48 of 48 minutes covered

Midday of Thursday 4 December

Ṣaṣṭhī is absent from madhyāhna. Not taken.

madhyāhna begins 11:06  11:54 madhyāhna ends
10:1810:4211:0611:3011:5412:1812:42

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 06:02 on Wed 3 Dec to 07:33 on Thu 4 Dec.

    1913-12-02T22:01:47Z → 1913-12-03T23:33:19Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:05–11:53 on the 3rd, 11:06–11:54 on the 4th.

    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 3rd and 0 of 48 on the 4th.

    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 12755 s

  5. 05

    Ruling

    Skanda Ṣaṣṭhī, Daqing, 1913: Wednesday 3 December.

    confidence: determinate

Say it like this

In Daqing, Skanda Ṣaṣṭhī 1913 falls on Wednesday 3 December. Ṣaṣṭhī runs from 06:02 on Wed 3 Dec to 07:33 on Thu 4 Dec and covers all of madhyāhna that midday.

ahargana.org/daqing/festivals/1913/skanda-shashthi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 3 Dec
Ahargaṇa, classicalDisc centre, no refractionWed 3 Dec
compat-drikpanchangComparison profileWed 3 Dec
No institution has a recorded ruling for Daqing.

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 2ndCoveredMadhyāhna 3rdCoveredRuled
Los Angeles14:02 → 15:3311:180 min11:1948 min3 Dec
Chicago16:02 → 17:3311:160 min11:1648 min3 Dec
Jersey City17:02 → 18:3311:220 min11:2248 min3 Dec
Port of Spain18:02 → 19:3311:310 min11:3248 min3 Dec
London22:02 → 23:3311:260 min11:2648 min3 Dec
Durban00:02 → 01:3311:210 min11:2248 min3 Dec
Dubai01:43 → 03:1411:250 min11:2548 min3 Dec
Delhi03:32 → 05:0311:460 min11:4748 min3 Dec
Kolkata03:32 → 05:0311:020 min11:0248 min3 Dec
Singapore05:02 → 06:3311:300 min11:3048 min3 Dec
Sydney08:02 → 09:3311:210 min11:2148 min3 Dec
Suva09:57 → 11:2811:270 min11:2748 min3 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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