HEB: Haute Ecole de Bruxelles (French: High School of Brussels; Brussels, Belgium) HEB: Hindu Endowments Board (Singapore) HEB: Here Everything's Better: HEB: High Energy Biscuit: HEB: High-Energy Beam: HEB: High Efficiency Boiler: HEB: Health Evidence Bulletins: HEB: Heating Element Bank: HEB: Higher Education Bulletin (Kenya) HEB
Twilight is the time between darkness and sunrise in the morning, and sunset and complete darkness in the evening, when there is light outside, but the Sun is below the horizon. There are 3 types of twilight: civil, nautical, and astronomical. Dubai skyline in twilight.
Feb. 16, 2016 Rise Set; Actual Time: 7:21 AM EST: 6:22 PM EST: Civil Twilight: 6:55 AM EST: 6:48 PM EST: Nautical Twilight: 6:26 AM EST: 7:17 PM EST: Astronomical Twilight: 5:57 AM EST: 7:46 PM EST: Moon: 1:05 PM EST (2/16) 2:15 AM EST (2/16) Length of Visible Light: 11h 52m Length of Day