Moonrise of Monday 14 September
Taken. Ṣaṣṭhī reaches neither moonrise; this is the day it falls on.
21:15 moonrise
20:0320:2720:5121:1521:3922:0322:27
Absent at moonrise
Ruling · Candra Ṣaṣṭhī · 1908
Boundaryin Luanda, under the Rashtriya Panchang method. Ṣaṣṭhī reaches moonrise on neither day and the rule does not say what then. Say “contested”.
One ghaṭī is 24 minutes. The moonrise is read as disc centre, 31′.
Moonrise of Monday 14 September
Taken. Ṣaṣṭhī reaches neither moonrise; this is the day it falls on.
Absent at moonrise
Moonrise of Tuesday 15 September
Ṣaṣṭhī does not hold at moonrise. Not taken.
Absent at moonrise
Aṅga
Ṣaṣṭhī runs from 22:45 on Mon 14 Sep to 22:06 on Tue 15 Sep.
1908-09-14T22:31:45Z → 1908-09-15T21:53:26Z
Kāla
Moonrise is at 21:15 on the 14th and 22:09 on the 15th.
moonrise: disc centre, 31′
Rule
Ṣaṣṭhī must be current at moonrise. It is not on the 14th and is not on the 15th.
Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103
Tie-break
Neither moonrise qualifies. The day the tithi falls on is taken.
priority: purvaviddha → tithi-day · margin 139 s < 300 s
Ruling
Candra Ṣaṣṭhī, Luanda, 1908: Monday 14 September.
confidence: boundary (margin, absent-unstated)
In Luanda, Candra Ṣaṣṭhī 1908 falls on Monday 14 September. Ṣaṣṭhī runs from 22:45 on Mon 14 Sep to 22:06 on Tue 15 Sep, and is current at moonrise on neither day. It is 2 min 19 s from a threshold: treat the date as contested.
| Authority | Kind | Date |
|---|---|---|
| Ahargaṇa, pac-rp | This ruling | Mon 14 Sep |
| Ahargaṇa, classical | Disc centre, no refraction | Mon 14 Sep |
| compat-drikpanchang | Comparison profile | Mon 14 Sep |
| No institution has a recorded ruling for Luanda. | ||
Institutional rulings are recorded with a source address, and are never edited to agree.
/rules/chandra-shashthi · ruleset 2026.3-draft
“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.
Twelve places, west to east. Local clock times.
| Place | Ṣaṣṭhī | Moonrise 14th | Covered | Moonrise 15th | Covered | Ruled |
|---|---|---|---|---|---|---|
| Los Angeles | 14:32 → 13:53 | 21:10 | holds | 21:50 | no | 14 Sep |
| Chicago | 16:32 → 15:53 | 20:50 | holds | 21:25 | no | 14 Sep |
| Jersey City | 17:32 → 16:53 | 20:56 | holds | 21:32 | no | 14 Sep |
| Port of Spain | 18:32 → 17:53 | 21:49 | holds | 22:37 | no | 14 Sep |
| London | 22:32 → 21:53 | 20:29 | no | 20:56 | holds | 15 Sep |
| Durban | 00:32 → 23:53 | 22:14 | no | 23:16 | holds | 15 Sep |
| Dubai | 02:13 → 01:34 | 21:11 | no | 21:53 | holds | 15 Sep |
| Delhi | 04:02 → 03:23 | 21:25 | no | 22:06 | holds | 15 Sep |
| Kolkata | 04:02 → 03:23 | 20:47 | no | 21:30 | holds | 15 Sep |
| Singapore | 05:32 → 04:53 | 21:35 | no | 22:26 | holds | 15 Sep |
| Sydney | 08:32 → 07:53 | 21:58 | no | 23:03 | holds | 15 Sep |
| Suva | 10:27 → 09:48 | 21:40 | no | 22:38 | holds | 15 Sep |