Ruling · Candra Ṣaṣṭhī · 1939

Tuesday 3 October

Determinatein Luanda, under the Rashtriya Panchang method. Clear of every threshold by 98 minutes.

Decide it for

8°50′ S 13°14′ E · Africa/Luanda · GeoNames 2240449

The two moonrises

One ghaṭī is 24 minutes. The moonrise is read as disc centre, 31′.

Moonrise of Tuesday 3 October

Taken. The only moonrise Ṣaṣṭhī holds at.

22:12 moonrise
21:0021:2421:4822:1222:3623:0023:24

Holds at moonrise

Moonrise of Wednesday 4 October

Ṣaṣṭhī does not hold at moonrise. Not taken.

23:06 moonrise
21:5422:1822:4223:0623:3023:5400:18

Absent at moonrise

Ṣaṣṭhī presentMoonrise, the instant the rule readsThe instant the tithi begins or ends

How it was decided

  1. 01

    Aṅga

    Ṣaṣṭhī runs from 20:34 on Tue 3 Oct to 20:09 on Wed 4 Oct.

    1939-10-03T19:34:01Z → 1939-10-04T19:08:36Z

  2. 02

    Kāla

    Moonrise is at 22:12 on the 3rd and 23:06 on the 4th.

    moonrise: disc centre, 31′

  3. 03

    Rule

    Ṣaṣṭhī must be current at moonrise. It is on the 3rd and is not on the 4th.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103

  4. 04

    Tie-break

    Only one moonrise qualifies. No tie-break is needed.

    priority: purvaviddha → only-day · margin 5892 s

  5. 05

    Ruling

    Candra Ṣaṣṭhī, Luanda, 1939: Tuesday 3 October.

    confidence: determinate

Say it like this

In Luanda, Candra Ṣaṣṭhī 1939 falls on Tuesday 3 October. Ṣaṣṭhī runs from 20:34 on Tue 3 Oct to 20:09 on Wed 4 Oct and is current at moonrise that day.

ahargana.org/luanda/festivals/1939/chandra-shashthi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 3 Oct
Ahargaṇa, classicalDisc centre, no refractionTue 3 Oct
compat-drikpanchangComparison profileTue 3 Oct
No institution has a recorded ruling for Luanda.

Institutional rulings are recorded with a source address, and are never edited to agree.

The rule, as data

/rules/chandra-shashthi · ruleset 2026.3-draft

Month
Bhādrapada, amānta
Pakṣa · aṅga
Kṛṣṇa · Ṣaṣṭhī
Kāla
Moonrise
Priority
Pūrvaviddhā
Tie-break
First day
Reference
CRC 1955, p. 103

“K 6 Candra sasthi (Sasthi current at moon-rise, if occurs on two successive days, it is to be observed on the first day).” Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103.

The same rule, elsewhere

Twelve places, west to east. Local clock times.

PlaceṢaṣṭhīMoonrise 3rdCoveredMoonrise 4thCoveredRuled
Los Angeles11:34 → 11:0921:10holds22:04no3 Oct
Chicago13:34 → 13:0920:45holds21:39no3 Oct
Jersey City14:34 → 14:0920:52holds21:45no3 Oct
Port of Spain15:34 → 15:0921:55holds22:49no3 Oct
London20:34 → 20:0921:13holds22:04no3 Oct
Durban21:34 → 21:0922:32holds23:27no3 Oct
Dubai23:34 → 23:0921:28no22:21holds4 Oct
Delhi01:04 → 00:3921:21no22:13holds4 Oct
Kolkata01:04 → 00:3920:46no21:38holds4 Oct
Singapore02:54 → 02:2922:02no22:56holds4 Oct
Sydney05:34 → 05:0922:21no23:17holds4 Oct
Suva07:34 → 07:0922:00no22:55holds4 Oct
Profile · tradition
pac-rp@2026.1 · smarta
Rule
chandra-shashthi@2026.3-draft
Engine · kernel
0.1.0 · de440 7eef…ea74
Boundary margin
300 s

About Ahargaṇa