condition mean min max 4 h after light 11394.335105 11336.76892 11451.90129 8 h after light 11824.776875 11476.84744 12172.70631 12 h after light 12024.44087 11746.63847 12302.24327 4 h after dark 13052.086544999998 12449.23707 13654.93602 8 h after dark 11904.457185 11443.42436 12365.49001 12 h after dark 14690.92977 14690.92977 14690.92977