Ruling · Skanda Ṣaṣṭhī · 1982

Tuesday 21 December

Determinatein Daqing, under the Rashtriya Panchang method. Clear of every threshold by 171 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 Tuesday 21 December

Taken. The only midday Ṣaṣṭhī reaches.

madhyāhna begins 11:14  12:02 madhyāhna ends
10:2610:5011:1411:3812:0212:2612:50

48 of 48 minutes covered

Midday of Wednesday 22 December

Ṣaṣṭhī is absent from madhyāhna. Not taken.

madhyāhna begins 11:14  12:02 madhyāhna ends
10:2610:5011:1411:3812:0212:2612:50

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 06:21 on Tue 21 Dec to 08:23 on Wed 22 Dec.

    1982-12-20T22:21:29Z → 1982-12-22T00:23:07Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:14–12:02 on the 21st, 11:14–12:02 on the 22nd.

    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 21st and 0 of 48 on the 22nd.

    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 10272 s

  5. 05

    Ruling

    Skanda Ṣaṣṭhī, Daqing, 1982: Tuesday 21 December.

    confidence: determinate

Say it like this

In Daqing, Skanda Ṣaṣṭhī 1982 falls on Tuesday 21 December. Ṣaṣṭhī runs from 06:21 on Tue 21 Dec to 08:23 on Wed 22 Dec and covers all of madhyāhna that midday.

ahargana.org/daqing/festivals/1982/skanda-shashthi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 21 Dec
Ahargaṇa, classicalDisc centre, no refractionTue 21 Dec
compat-drikpanchangComparison profileTue 21 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 20thCoveredMadhyāhna 22ndCoveredRuled
Los Angeles14:21 → 16:2311:270 min11:280 min21 Dec
Chicago16:21 → 18:2311:240 min11:250 min21 Dec
Jersey City17:21 → 19:2311:300 min11:310 min21 Dec
Port of Spain18:21 → 20:2311:400 min11:410 min21 Dec
London22:21 → 00:2311:340 min11:350 min21 Dec
Durban00:21 → 02:2311:290 min11:300 min21 Dec
Dubai02:21 → 04:2311:520 min11:530 min21 Dec
Delhi03:51 → 05:5311:540 min11:550 min21 Dec
Kolkata03:51 → 05:5311:100 min11:110 min21 Dec
Singapore06:21 → 08:2312:380 min12:390 min21 Dec
Sydney09:21 → 11:2312:280 min12:290 min21 Dec
Suva10:21 → 12:2311:400 min11:4143 min21 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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