Vitamin D

The sun, month by month

Sunrise and sunset in Seattle in March

On March 1 in Seattle the sun rises at 06:54 and sets at 17:51; on day 31 it rises at 06:53 and sets at 19:35. Over the month the day grows 105 minutes longer.

Sunrise07:26
Sunset19:12
Golden hour18:31–19:12
Day length11 h 45 min

Day by day

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

DayDawnSunriseSunsetDuskDay length
106:2306:5417:5118:2210 h 57 min
206:2106:5217:5218:2311 h 00 min
306:1906:5017:5418:2511 h 03 min
406:1706:4817:5518:2611 h 07 min
506:1606:4617:5718:2811 h 10 min
606:1406:4417:5818:2911 h 14 min
706:1206:4217:6018:3011 h 17 min
806:1006:4118:0118:3211 h 21 min
907:0807:3919:0319:3311 h 24 min
1007:0607:3719:0419:3511 h 28 min
1107:0407:3519:0619:3611 h 31 min
1207:0207:3219:0719:3811 h 35 min
1306:6007:3019:0919:3911 h 38 min
1406:5807:2819:1019:4111 h 42 min
1506:5607:2619:1219:4211 h 45 min
1606:5407:2419:1319:4411 h 49 min
1706:5207:2219:1419:4511 h 52 min
1806:5007:2019:1619:4711 h 56 min
1906:4707:1819:1719:4811 h 59 min
2006:4507:1619:1919:5012 h 03 min
2106:4307:1419:2019:5112 h 06 min
2206:4107:1219:2219:5312 h 10 min
2306:3907:1019:2319:5412 h 13 min
2406:3707:0819:2519:5512 h 17 min
2506:3507:0619:2619:5712 h 20 min
2606:3307:0419:2819:5812 h 24 min
2706:3107:0119:2919:6012 h 28 min
2806:2806:5919:3020:0112 h 31 min
2906:2606:5719:3220:0312 h 35 min
3006:2406:5519:3320:0412 h 38 min
3106:2206:5319:3520:0612 h 42 min

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

What about vitamin D in March?

In March, the typical synthesis window in Seattle runs from 13:00 to 15:00: with medium skin and a t-shirt, ~17 min at the best moment is enough.

See the Seattle vitamin D guide