Sunrise and sunset Ryūō
Saturday, December 4, 2021
| Start | End | |
|---|---|---|
| Morning astronomical twilight | 05:09 | 05:40 |
| Morning nautical twilight | 05:40 | 06:12 |
| Morning civil twilight | 06:12 | 06:40 |
| Sunrise and sunset | 06:40 | 16:31 |
| Evening civil twilight | 16:31 | 16:59 |
| Evening nautical twilight | 16:59 | 17:31 |
| Evening astronomical twilight | 17:31 | 18:02 |
