Ruling · Campā Ṣaṣṭhī · 1939

Sunday 17 December

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 28 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 16 December

Qualifies with 48 of 48 minutes. Not taken.

madhyāhna begins 11:49  12:37 madhyāhna ends
11:0111:2511:4912:1312:3713:0113:25

48 of 48 minutes covered

Midday of Sunday 17 December

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

madhyāhna begins 11:50  12:38 madhyāhna ends
Ṣaṣṭhī ends 13:05:30
11:0211:2611:5012:1412:3813:0213:26

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 10:37 on Sat 16 Dec to 13:06 on Sun 17 Dec.

    1939-12-16T02:37:15Z → 1939-12-17T05:05:31Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:49–12:37 on the 16th, 11:50–12:38 on the 17th.

    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 16th and 48 of 48 on the 17th.

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

  4. 04

    Tie-break

    Both middays qualify. Paraviddhā: the second is taken.

    priority: paraviddha → paraviddha · margin 1664 s

  5. 05

    Ruling

    Campā Ṣaṣṭhī, Baoding, 1939: Sunday 17 December.

    confidence: determinate

Say it like this

In Baoding, Campā Ṣaṣṭhī 1939 falls on Sunday 17 December. Ṣaṣṭhī runs from 10:37 on Sat 16 Dec to 13:06 on Sun 17 Dec and covers all of madhyāhna that midday. It also reaches the previous midday for 48 minutes; by the rule the second midday is taken.

ahargana.org/baoding/festivals/1939/champa-shashthi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSun 17 Dec
Ahargaṇa, classicalDisc centre, no refractionSun 17 Dec
compat-drikpanchangComparison profileSun 17 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/champa-shashthi · ruleset 2026.3-draft

Month
Mārgaśīrṣa, amānta
Pakṣa · aṅga
Śukla · Ṣaṣṭhī
Kāla
Madhyāhna
Priority
Paraviddhā
Tie-break
Second 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 row calls the day special with Śatabhiṣaj nakṣatra, Vyatīpāta yoga and a Sunday; none is tested.

The same rule, elsewhere

Twelve places, west to east. Local clock times.

PlaceṢaṣṭhīMadhyāhna 16thCoveredMadhyāhna 17thCoveredRuled
Los Angeles18:37 → 21:0611:2448 min11:250 min16 Dec
Chicago20:37 → 23:0611:2248 min11:230 min16 Dec
Jersey City21:37 → 00:0611:2848 min11:280 min16 Dec
Port of Spain22:37 → 01:0611:3748 min11:380 min16 Dec
London02:37 → 05:0611:3248 min11:320 min16 Dec
Durban04:37 → 07:0611:2748 min11:280 min16 Dec
Dubai06:37 → 09:0611:5048 min11:500 min16 Dec
Delhi08:07 → 10:3611:5248 min11:530 min16 Dec
Kolkata08:07 → 10:3611:0848 min11:080 min16 Dec
Singapore09:57 → 12:2611:5648 min11:5629 min17 Dec
Sydney12:37 → 15:0611:260 min11:2748 min17 Dec
Suva14:37 → 17:0611:370 min11:3848 min17 Dec
Profile · tradition
pac-rp@2026.1 · smarta
Rule
champa-shashthi@2026.3-draft
Engine · kernel
0.1.0 · de440 7eef…ea74
Boundary margin
300 s

About Ahargaṇa