Moonrise of Sunday 9 September
Ṣaṣṭhī does not hold at moonrise. Not taken.
20:36 moonrise
19:2419:4820:1220:3621:0021:2421:48
Absent at moonrise
Ruling · Candra Ṣaṣṭhī · 1990
Boundaryin Daqing, under the Rashtriya Panchang method. A threshold is only 2 min 59 s away. Say “contested”.
One ghaṭī is 24 minutes. The moonrise is read as disc centre, 31′.
Moonrise of Sunday 9 September
Ṣaṣṭhī does not hold at moonrise. Not taken.
Absent at moonrise
Moonrise of Monday 10 September
Taken. The only moonrise Ṣaṣṭhī holds at.
Holds at moonrise
Aṅga
Ṣaṣṭhī runs from 23:45 on Sun 9 Sep to 21:18 on Mon 10 Sep.
1990-09-09T14:44:57Z → 1990-09-10T12:17:48Z
Kāla
Moonrise is at 20:36 on the 9th and 21:15 on the 10th.
moonrise: disc centre, 31′
Rule
Ṣaṣṭhī must be current at moonrise. It is not on the 9th and is on the 10th.
Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103
Tie-break
Only one moonrise qualifies. No tie-break is needed.
priority: purvaviddha → only-day · margin 179 s < 300 s
Ruling
Candra Ṣaṣṭhī, Daqing, 1990: Monday 10 September.
confidence: boundary (margin)
In Daqing, Candra Ṣaṣṭhī 1990 falls on Monday 10 September. Ṣaṣṭhī runs from 23:45 on Sun 9 Sep to 21:18 on Mon 10 Sep and is current at moonrise that day. It is 2 min 59 s from a threshold: treat the date as contested.
| Authority | Kind | Date |
|---|---|---|
| Ahargaṇa, pac-rp | This ruling | Mon 10 Sep |
| Ahargaṇa, classical | Disc centre, no refraction | Mon 10 Sep |
| compat-drikpanchang | Comparison profile | Sun 9 Sep |
| No institution has a recorded ruling for Daqing. | ||
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 9th | Covered | Moonrise 10th | Covered | Ruled |
|---|---|---|---|---|---|---|
| Los Angeles | 07:45 → 05:18 | 21:56 | holds | 22:48 | no | 9 Sep |
| Chicago | 09:45 → 07:18 | 21:26 | holds | 22:14 | no | 9 Sep |
| Jersey City | 10:45 → 08:18 | 21:34 | holds | 22:22 | no | 9 Sep |
| Port of Spain | 10:45 → 08:18 | 21:52 | holds | 22:50 | no | 9 Sep |
| London | 15:45 → 13:18 | 20:47 | holds | 21:25 | no | 9 Sep |
| Durban | 16:45 → 14:18 | 22:45 | holds | 23:53 | no | 9 Sep |
| Dubai | 18:45 → 16:18 | 21:20 | holds | 22:12 | no | 9 Sep |
| Delhi | 20:15 → 17:48 | 21:12 | holds | 22:02 | no | 9 Sep |
| Kolkata | 20:15 → 17:48 | 20:39 | holds | 21:31 | no | 9 Sep |
| Singapore | 22:45 → 20:18 | 22:41 | no | 23:40 | no | 9 Sep |
| Sydney | 00:45 → 22:18 | 22:30 | no | 23:41 | no | 9 Sep |
| Suva | 02:45 → 00:18 | 22:03 | no | 23:08 | holds | 10 Sep |