Astronomical observations Herndon (United States)
| Sunrise | 06 h 44 am |
|---|---|
| Transition hour | 01 h 07 pm |
| Sunset | 07 h 30 pm |
| Starting of civil twilight | 06 h 17 am |
| Termination of civil twilight | 07 h 57 pm |
| Duration of sunshine | 12 h 46 |
| Sunrise | 01 h 24 am |
|---|---|
| Sunset | 04 h 39 pm |
| Fraction illuminated | 14 % (premier croissant) |