Moonrise of Friday 18 September
Taken. Ṣaṣṭhī reaches neither moonrise; this is the day it falls on.
20:25 moonrise
Ṣaṣṭhī begins 21:34:10
19:1319:3720:0120:2520:4921:1321:37
Absent at moonrise
Ruling · Candra Ṣaṣṭhī · 1981
Boundaryin Daqing, 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 Friday 18 September
Taken. Ṣaṣṭhī reaches neither moonrise; this is the day it falls on.
Absent at moonrise
Moonrise of Saturday 19 September
Ṣaṣṭhī does not hold at moonrise. Not taken.
Absent at moonrise
Aṅga
Ṣaṣṭhī runs from 21:34 on Fri 18 Sep to 19:02 on Sat 19 Sep.
1981-09-18T13:34:11Z → 1981-09-19T11:01:43Z
Kāla
Moonrise is at 20:25 on the 18th and 21:04 on the 19th.
moonrise: disc centre, 31′
Rule
Ṣaṣṭhī must be current at moonrise. It is not on the 18th and is not on the 19th.
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 4159 s
Ruling
Candra Ṣaṣṭhī, Daqing, 1981: Friday 18 September.
confidence: boundary (absent-unstated)
In Daqing, Candra Ṣaṣṭhī 1981 falls on Friday 18 September. Ṣaṣṭhī runs from 21:34 on Fri 18 Sep to 19:02 on Sat 19 Sep, and is current at moonrise on neither day.
| Authority | Kind | Date |
|---|---|---|
| Ahargaṇa, pac-rp | This ruling | Fri 18 Sep |
| Ahargaṇa, classical | Disc centre, no refraction | Fri 18 Sep |
| compat-drikpanchang | Comparison profile | Fri 18 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 18th | Covered | Moonrise 19th | Covered | Ruled |
|---|---|---|---|---|---|---|
| Los Angeles | 06:34 → 04:02 | 22:31 | holds | 23:20 | no | 18 Sep |
| Chicago | 08:34 → 06:02 | 22:09 | holds | 22:54 | no | 18 Sep |
| Jersey City | 09:34 → 07:02 | 22:16 | holds | 23:01 | no | 18 Sep |
| Port of Spain | 09:34 → 07:02 | 22:11 | holds | 23:06 | no | 18 Sep |
| London | 14:34 → 12:02 | 21:44 | holds | 22:22 | no | 18 Sep |
| Durban | 15:34 → 13:02 | 22:39 | holds | 23:45 | no | 18 Sep |
| Dubai | 17:34 → 15:02 | 21:49 | holds | 22:38 | no | 18 Sep |
| Delhi | 19:04 → 16:32 | 21:43 | holds | 22:31 | no | 18 Sep |
| Kolkata | 19:04 → 16:32 | 21:05 | holds | 21:56 | no | 18 Sep |
| Singapore | 21:04 → 18:32 | 22:26 | holds | 23:22 | no | 18 Sep |
| Sydney | 23:34 → 21:02 | 22:23 | no | 23:30 | no | 18 Sep |
| Suva | 01:34 → 23:02 | 22:07 | no | 23:09 | no | 18 Sep |