The Hesperides in Heracles (Hercules): The Twelve Labors
The Hesperides are nymphs that are considered the goddesses of the sunset. It is their job to guard the golden apples that Gaia gave to Hera as a wedding present. It's sometimes said that the sunset itself is a celebration of Hera's marriage to Zeus. For his eleventh labor, Heracles has to steal the golden apples from the sunset goddesses. According to some he does this with the help of their father, Atlas, but according to others Heracles slays the hundred-headed dragon Ladon in order to take the golden apples.