Wiktionary
adv. Before night begins to fall. From morning until evening. In the daytime before sunset.
Wikipedia
Before Dark was an American R&B girl group that originated in the late 1990s. The group consisted of sisters Arike Rice and Jeni Rice Genzuk (AKA Jeni G.), and their friend Mia Wright (née Lee), all from South Central Los Angeles. The group released the album Daydreamin' on July 11, 2000 on the RCA Records label with a single called "Baby" featuring female rapper Solé. They also made a guest appearance on Tyrese's self-titled debut album. Later in 2000, the single "Monica" hit #77 on the Billboard Top 100 chart and #7 on the Billboard R&B sales chart.
Arike Rice was formerly a member of the 90's group The Voices when she was nine. She also appeared on the movie Dreamgirls as a member of 'The Stepp Sisters'. Mia Lee married basketball player Dorrell Wright in 2014.
Usage examples of "before dark".
If we started at dawn in the morning and climbed well, we should be through that gap and part down the other side before dark.
Happily they are afoot and that means they could not come up to us before dark.
And if we wish to continue our lives with the blessing, Jack, we'll be gone our separate ways from here long before dark.
BLACKNESS and black stones were the last things I saw, before dark oblivion closed down over me like folding wings.