Ruling · Skanda Ṣaṣṭhī · 2037

Saturday 12 December

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 270 minutes.

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 Saturday 12 December

Taken. The only midday Ṣaṣṭhī reaches.

madhyāhna begins 11:48  12:36 madhyāhna ends
11:0011:2411:4812:1212:3613:0013:24

48 of 48 minutes covered

Midday of Sunday 13 December

Ṣaṣṭhī is absent from madhyāhna. Not taken.

madhyāhna begins 11:48  12:36 madhyāhna ends
11:0011:2411:4812:1212:3613:0013:24

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 05:37 on Sat 12 Dec to 07:18 on Sun 13 Dec.

    2037-12-11T21:36:57Z → 2037-12-12T23:17:49Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:48–12:36 on the 12th, 11:48–12:36 on the 13th.

    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 12th and 0 of 48 on the 13th.

    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 16227 s

  5. 05

    Ruling

    Skanda Ṣaṣṭhī, Baoding, 2037: Saturday 12 December.

    confidence: determinate

Say it like this

In Baoding, Skanda Ṣaṣṭhī 2037 falls on Saturday 12 December. Ṣaṣṭhī runs from 05:37 on Sat 12 Dec to 07:18 on Sun 13 Dec and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/2037/skanda-shashthi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 12 Dec
Ahargaṇa, classicalDisc centre, no refractionSat 12 Dec
compat-drikpanchangComparison profileSat 12 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 11thCoveredMadhyāhna 12thCoveredRuled
Los Angeles13:37 → 15:1811:220 min11:2348 min12 Dec
Chicago15:37 → 17:1811:200 min11:2048 min12 Dec
Jersey City16:37 → 18:1811:260 min11:2648 min12 Dec
Port of Spain17:37 → 19:1811:360 min11:3648 min12 Dec
London21:37 → 23:1811:300 min11:3048 min12 Dec
Durban23:37 → 01:1811:250 min11:2648 min12 Dec
Dubai01:37 → 03:1811:480 min11:4848 min12 Dec
Delhi03:07 → 04:4811:500 min11:5148 min12 Dec
Kolkata03:07 → 04:4811:060 min11:0648 min12 Dec
Singapore05:37 → 07:1812:340 min12:3448 min12 Dec
Sydney08:37 → 10:1812:240 min12:2548 min12 Dec
Suva09:37 → 11:1811:350 min11:3648 min12 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