Ruling · Skanda Ṣaṣṭhī · 2020

Sunday 20 December

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 245 minutes.

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 19 December

Ṣaṣṭhī is absent from madhyāhna. Not taken.

madhyāhna begins 11:51  12:39 madhyāhna ends
11:0311:2711:5112:1512:3913:0313:27

0 of 48 minutes covered

Midday of Sunday 20 December

Taken. The only midday Ṣaṣṭhī reaches.

madhyāhna begins 11:52  12:40 madhyāhna ends
11:0411:2811:5212:1612:4013:0413:28

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 16:45 on Sat 19 Dec to 17:23 on Sun 20 Dec.

    2020-12-19T08:44:42Z → 2020-12-20T09:23:08Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:51–12:39 on the 19th, 11:52–12:40 on the 20th.

    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 19th and 48 of 48 on the 20th.

    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 14725 s

  5. 05

    Ruling

    Skanda Ṣaṣṭhī, Baoding, 2020: Sunday 20 December.

    confidence: determinate

Say it like this

In Baoding, Skanda Ṣaṣṭhī 2020 falls on Sunday 20 December. Ṣaṣṭhī runs from 16:45 on Sat 19 Dec to 17:23 on Sun 20 Dec and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/2020/skanda-shashthi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSun 20 Dec
Ahargaṇa, classicalDisc centre, no refractionSun 20 Dec
compat-drikpanchangComparison profileSun 20 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 19thCoveredMadhyāhna 20thCoveredRuled
Los Angeles00:45 → 01:2311:2648 min11:270 min19 Dec
Chicago02:45 → 03:2311:2448 min11:250 min19 Dec
Jersey City03:45 → 04:2311:3048 min11:300 min19 Dec
Port of Spain04:45 → 05:2311:3948 min11:400 min19 Dec
London08:45 → 09:2311:3448 min11:340 min19 Dec
Durban10:45 → 11:2311:2948 min11:300 min19 Dec
Dubai12:45 → 13:2311:520 min11:5248 min20 Dec
Delhi14:15 → 14:5311:540 min11:5548 min20 Dec
Kolkata14:15 → 14:5311:100 min11:1048 min20 Dec
Singapore16:45 → 17:2312:380 min12:3848 min20 Dec
Sydney19:45 → 20:2312:280 min12:2948 min20 Dec
Suva20:45 → 22:2311:390 min12:4048 min20 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

About Ahargaṇa