BW time transitions

SPRING
0.00-4.59
5.00-5.29
5.30-5.59
6.00-8.59
9.00-11.29
11.30-11.59
12.00-15.29
15.30-15.59
16.00-16.59
17.00-17.59
18.00-18.59
19.00-19.59
20.00-20.59
21.00-23.59
SUMMER
0.00-3.59
4.00-4.29
4.30-4.59
5.00-7.59
8.00-10.29
10.30-10.59
11.00-17.29
17.30-17.59
18.00-18.59
19.00-19.59
20.00-20.29
20.30-20.59
21.00-21.59
22.00-23.59
AUTUMN
0.00-5.59
6.00-6.29
6.30-6.59
7.00-9.59
10.00-11.29
11.30-11.59
12.00-15.29
15.30-15.59
16.00-16.59
17.00-17.59
18.00-18.59
19.00-19.59
20.00-20.59
21.00-23.59
WINTER
0.00-6.59
7.00-7.29
7.30-7.59
8.00-9.59
11.00-12.29
12.30-12.59
13.00-15.29
15.30-15.59
16.00-16.59
17.00-17.59
18.00-18.29
18.30-18.59
19.00-19.59
20.00-23.59

19.00-6.59 (nighttime) is darker tint than other seasons