Astronomical observations Reston (United States)
| Sunrise | 06 h 45 am |
|---|---|
| Transition hour | 01 h 06 pm |
| Sunset | 07 h 27 pm |
| Starting of civil twilight | 06 h 18 am |
| Termination of civil twilight | 07 h 54 pm |
| Duration of sunshine | 12 h 42 |
| Sunrise | 03 h 54 am |
|---|---|
| Sunset | 05 h 43 pm |
| Fraction illuminated | 4 % (premier croissant) |