Vitamin D

The sun, month by month

Sunrise and sunset in Chicago in June

On June 1 in Chicago the sun rises at 05:18 and sets at 20:18; on day 30 it rises at 05:18 and sets at 20:29. Over the month the day grows 11 minutes longer.

Sunrise05:15
Sunset20:27
Golden hour19:45–20:27
Day length15 h 12 min

Day by day

All times are local to Chicago. Dawn and dusk mark civil twilight.

DayDawnSunriseSunsetDuskDay length
104:4405:1820:1820:5215 h 01 min
204:4405:1720:1920:5315 h 02 min
304:4305:1720:2020:5415 h 03 min
404:4305:1720:2120:5415 h 04 min
504:4205:1620:2120:5515 h 05 min
604:4205:1620:2220:5615 h 06 min
704:4205:1620:2320:5715 h 07 min
804:4105:1520:2320:5715 h 08 min
904:4105:1520:2420:5815 h 09 min
1004:4105:1520:2420:5915 h 10 min
1104:4105:1520:2520:5915 h 10 min
1204:4005:1520:2620:6015 h 11 min
1304:4005:1520:2621:0015 h 11 min
1404:4005:1520:2621:0115 h 12 min
1504:4005:1520:2721:0115 h 12 min
1604:4005:1520:2721:0215 h 13 min
1704:4005:1520:2821:0215 h 13 min
1804:4005:1520:2821:0215 h 13 min
1904:4005:1520:2821:0315 h 13 min
2004:4105:1520:2921:0315 h 14 min
2104:4105:1520:2921:0315 h 14 min
2204:4105:1520:2921:0315 h 14 min
2304:4105:1620:2921:0415 h 14 min
2404:4205:1620:2921:0415 h 13 min
2504:4205:1620:2921:0415 h 13 min
2604:4205:1720:2921:0415 h 13 min
2704:4305:1720:2921:0415 h 13 min
2804:4305:1720:2921:0415 h 12 min
2904:4405:1820:2921:0415 h 12 min
3004:4405:1820:2921:0415 h 11 min

Approximate astronomical values: they can shift a minute or two from year to year.

What about vitamin D in June?

In June, the typical synthesis window in Chicago runs from 09:00 to 17:00: with medium skin and a t-shirt, ~6 min at the best moment is enough.

See the Chicago vitamin D guide