Ruling · Skanda Ṣaṣṭhī · 2029

Tuesday 11 December

Determinatein Daqing, under the Rashtriya Panchang method. Clear of every threshold by 24 minutes.

Decide it for

DaqingDelhiKolkataSingaporeSydneyJersey City

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 Monday 10 December

Ṣaṣṭhī is absent from madhyāhna. Not taken.

madhyāhna begins 11:09  11:57 madhyāhna ends
Ṣaṣṭhī begins 12:21:01
10:2110:4511:0911:3311:5712:2112:45

0 of 48 minutes covered

Midday of Tuesday 11 December

Taken. The only midday Ṣaṣṭhī reaches.

madhyāhna begins 11:09  11:57 madhyāhna ends
Ṣaṣṭhī ends 12:21:34
10:2110:4511:0911:3311:5712:2112:45

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 12:21 on Mon 10 Dec to 12:22 on Tue 11 Dec.

    2029-12-10T04:21:02Z → 2029-12-11T04:21:35Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:09–11:57 on the 10th, 11:09–11:57 on the 11th.

    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 10th and 48 of 48 on the 11th.

    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 1462 s

  5. 05

    Ruling

    Skanda Ṣaṣṭhī, Daqing, 2029: Tuesday 11 December.

    confidence: determinate

Say it like this

In Daqing, Skanda Ṣaṣṭhī 2029 falls on Tuesday 11 December. Ṣaṣṭhī runs from 12:21 on Mon 10 Dec to 12:22 on Tue 11 Dec and covers all of madhyāhna that midday.

ahargana.org/daqing/festivals/2029/skanda-shashthi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 11 Dec
Ahargaṇa, classicalDisc centre, no refractionTue 11 Dec
compat-drikpanchangComparison profileMon 10 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 10thCoveredMadhyāhna 11thCoveredRuled
Los Angeles20:21 → 20:2211:2248 min11:220 min10 Dec
Chicago22:21 → 22:2211:2048 min11:200 min10 Dec
Jersey City23:21 → 23:2211:2548 min11:260 min10 Dec
Port of Spain00:21 → 00:2211:3548 min11:360 min10 Dec
London04:21 → 04:2211:2948 min11:300 min10 Dec
Durban06:21 → 06:2211:2548 min11:250 min10 Dec
Dubai08:21 → 08:2211:4848 min11:480 min10 Dec
Delhi09:51 → 09:5211:5048 min11:500 min10 Dec
Kolkata09:51 → 09:5211:0548 min11:060 min10 Dec
Singapore12:21 → 12:2212:3348 min12:340 min10 Dec
Sydney15:21 → 15:2212:240 min12:2448 min11 Dec
Suva16:21 → 16:2211:350 min11:3548 min11 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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