Ruling · Skanda Ṣaṣṭhī · 1904

Monday 12 December

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 17 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 12 December

Taken. Both middays qualify; the rule takes the first.

madhyāhna begins 11:48  12:36 madhyāhna ends
Ṣaṣṭhī begins 12:04:57
11:0011:2411:4812:1212:3613:0013:24

31 of 48 minutes covered, the last 31

Midday of Tuesday 13 December

Qualifies with 48 of 48 minutes. Not taken.

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

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 12:05 on Mon 12 Dec to 14:12 on Tue 13 Dec.

    1904-12-12T04:04:57Z → 1904-12-13T06:12:07Z

  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 31 of 48 minutes on the 12th and 48 of 48 on the 13th.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104

  4. 04

    Tie-break

    Both middays qualify. Pūrvaviddhā: the first is taken.

    priority: purvaviddha → purvaviddha · margin 1036 s

  5. 05

    Ruling

    Skanda Ṣaṣṭhī, Baoding, 1904: Monday 12 December.

    confidence: determinate

Say it like this

In Baoding, Skanda Ṣaṣṭhī 1904 falls on Monday 12 December. Ṣaṣṭhī runs from 12:05 on Mon 12 Dec to 14:12 on Tue 13 Dec and covers 31 of 48 minutes of madhyāhna that midday. It also reaches the next midday for 48 minutes; by the rule the first midday is taken.

ahargana.org/baoding/festivals/1904/skanda-shashthi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingMon 12 Dec
Ahargaṇa, classicalDisc centre, no refractionMon 12 Dec
compat-drikpanchangComparison profileMon 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 12thCoveredMadhyāhna 13thCoveredRuled
Los Angeles20:05 → 22:1211:2348 min11:230 min12 Dec
Chicago22:05 → 00:1211:2048 min11:210 min12 Dec
Jersey City23:05 → 01:1211:2648 min11:270 min12 Dec
Port of Spain00:05 → 02:1211:3648 min11:360 min12 Dec
London04:05 → 06:1211:3048 min11:310 min12 Dec
Durban06:05 → 08:1211:2648 min11:260 min12 Dec
Dubai07:46 → 09:5311:2948 min11:300 min12 Dec
Delhi09:26 → 11:3311:4248 min11:420 min12 Dec
Kolkata09:26 → 11:3310:5748 min10:5835 min12 Dec
Singapore11:00 → 13:0711:2948 min11:3048 min12 Dec
Sydney14:05 → 16:1211:250 min11:2548 min13 Dec
Suva16:00 → 18:0711:310 min11:3148 min13 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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