Ruling · Skanda Ṣaṣṭhī · 1918

Monday 9 December

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 609 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 Monday 9 December

Taken. The only midday Ṣaṣṭhī reaches.

madhyāhna begins 11:46  12:34 madhyāhna ends
10:5811:2211:4612:1012:3412:5813:22

48 of 48 minutes covered

Midday of Tuesday 10 December

Ṣaṣṭhī is absent from madhyāhna. Not taken.

madhyāhna begins 11:47  12:35 madhyāhna ends
10:5911:2311:4712:1112:3512:5913:23

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 01:37 on Mon 9 Dec to 00:42 on Tue 10 Dec.

    1918-12-08T17:36:58Z → 1918-12-09T16:42:18Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:46–12:34 on the 9th, 11:47–12:35 on the 10th.

    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 9th and 0 of 48 on the 10th.

    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 36548 s

  5. 05

    Ruling

    Skanda Ṣaṣṭhī, Baoding, 1918: Monday 9 December.

    confidence: determinate

Say it like this

In Baoding, Skanda Ṣaṣṭhī 1918 falls on Monday 9 December. Ṣaṣṭhī runs from 01:37 on Mon 9 Dec to 00:42 on Tue 10 Dec and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1918/skanda-shashthi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingMon 9 Dec
Ahargaṇa, classicalDisc centre, no refractionMon 9 Dec
compat-drikpanchangComparison profileMon 9 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 8thCoveredMadhyāhna 9thCoveredRuled
Los Angeles09:37 → 08:4211:2148 min11:210 min8 Dec
Chicago11:37 → 10:4211:1829 min11:190 min8 Dec
Jersey City12:37 → 11:4211:240 min11:2418 min9 Dec
Port of Spain13:37 → 12:4211:340 min11:3448 min9 Dec
London17:37 → 16:4211:280 min11:2948 min9 Dec
Durban19:37 → 18:4211:240 min11:2448 min9 Dec
Dubai21:18 → 20:2311:270 min11:2848 min9 Dec
Delhi23:07 → 22:1211:490 min11:4948 min9 Dec
Kolkata23:07 → 22:1211:040 min11:0548 min9 Dec
Singapore00:37 → 23:4211:320 min11:3348 min9 Dec
Sydney03:37 → 02:4211:230 min11:2348 min9 Dec
Suva05:37 → 04:4211:340 min11:3448 min9 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