Vitamin D

The sun, month by month

Sunrise and sunset in Tokyo in February

On February 1 in Tokyo the sun rises at 06:43 and sets at 17:07; on day 28 it rises at 06:15 and sets at 17:34. Over the month the day grows 54 minutes longer.

Sunrise06:31
Sunset17:21
Golden hour16:46–17:21
Day length10 h 50 min

Where does the sun rise and set in Tokyo in February?

Where it risesEast106°
Where it setsWest254°

Mid-February in Tokyo: the sun rises in the east — a bearing of 106°, measured from true north — and sets in the west, at 254°. That is 16° south of due east at sunrise, and the same 16° south of due west at sunset. From the 1st to the last day of the month both points shift 11° north.

Approximate bearings: they can be a couple of degrees out. They are measured from true north, not the north a phone compass points to.

Day by day

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

DayDawnSunriseSunsetDuskDay length
106:1606:4317:0717:3410 h 24 min
206:1506:4217:0817:3510 h 26 min
306:1506:4117:0917:3610 h 28 min
406:1406:4117:1017:3710 h 29 min
506:1306:4017:1117:3810 h 31 min
606:1206:3917:1217:3910 h 33 min
706:1206:3817:1317:4010 h 35 min
806:1106:3717:1417:4110 h 37 min
906:1006:3617:1517:4210 h 39 min
1006:0906:3617:1617:4310 h 41 min
1106:0806:3517:1717:4310 h 42 min
1206:0706:3417:1817:4410 h 44 min
1306:0606:3317:1917:4510 h 46 min
1406:0506:3217:2017:4610 h 48 min
1506:0406:3117:2117:4710 h 50 min
1606:0306:3017:2217:4810 h 52 min
1706:0206:2817:2317:4910 h 55 min
1806:0106:2717:2417:5010 h 57 min
1906:0006:2617:2517:5110 h 59 min
2005:5906:2517:2617:5211 h 01 min
2105:5806:2417:2717:5311 h 03 min
2205:5706:2317:2817:5411 h 05 min
2305:5606:2217:2917:5511 h 07 min
2405:5506:2017:3017:5611 h 09 min
2505:5306:1917:3117:5711 h 12 min
2605:5206:1817:3217:5711 h 14 min
2705:5106:1717:3317:5811 h 16 min
2805:5006:1517:3417:5911 h 18 min

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

What about vitamin D in February?

In February, the typical synthesis window in Tokyo runs from 11:00 to 14:00: with medium skin and a t-shirt, ~14 min at the best moment is enough.

See the Tokyo vitamin D guide

Common questions about the sun in Tokyo in February

Where does the sun set in Tokyo in February?
Mid-February in Tokyo: the sun sets in the west, a bearing of 254° measured from true north, which is 16° south of due west. It rises in the east, at 106°. Over the month both points shift 11° north.
How much daylight does Tokyo gain in February?
Over February the day gets 54 minutes longer in Tokyo: on February 1 the sun rises at 06:43 and sets at 17:07, and on day 28 it rises at 06:15 and sets at 17:34.
How many hours of daylight does Tokyo get in February?
In mid-February the day lasts 10 h 50 min in Tokyo, from sunrise at 06:31 to sunset at 17:21. The table has the day length for each of the 28 days of the month.
What time does it start to get light in Tokyo in February?
In mid-February the sky starts to get light at 06:04 in Tokyo, when the sun is 6° below the horizon, and the sun itself does not rise until 06:31. The “Dawn” column of the table gives that time for every day of the month.
What time does it get dark in Tokyo in February?
It's not the same time as sunset. In mid-February in Tokyo the sun sets at 17:21, but there is still light: civil twilight does not end until 17:47, when the sun reaches 6° below the horizon and usable outdoor light runs out. The “Dusk” column of the table gives that time day by day.
What time of day can you make vitamin D in Tokyo in February?
In mid-February, between 11:00 and 14:00: that is the stretch of the day when the UV index reaches 3 in Tokyo, the minimum for the skin to make vitamin D. At the best moment of the day about 14 minutes are enough for a mid-range skin phototype with a quarter of the body exposed to make around 1000 IU.