Vitamin D

The sun, month by month

Sunrise and sunset in Tokyo in December

On December 1 in Tokyo the sun rises at 06:34 and sets at 16:28; on day 31 it rises at 06:51 and sets at 16:38. Over the month the day gets 7 minutes shorter.

Sunrise06:45
Sunset16:30
Golden hour15:50–16:30
Day length9 h 45 min

Day by day

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

DayDawnSunriseSunsetDuskDay length
106:0606:3416:2816:569 h 54 min
206:0706:3516:2816:569 h 53 min
306:0806:3616:2816:569 h 52 min
406:0906:3716:2816:569 h 51 min
506:0906:3816:2816:569 h 50 min
606:1006:3816:2816:569 h 50 min
706:1106:3916:2816:569 h 49 min
806:1206:4016:2816:569 h 48 min
906:1206:4116:2816:579 h 48 min
1006:1306:4116:2816:579 h 47 min
1106:1406:4216:2916:579 h 47 min
1206:1406:4316:2916:579 h 46 min
1306:1506:4316:2916:579 h 46 min
1406:1506:4416:2916:589 h 45 min
1506:1606:4516:3016:589 h 45 min
1606:1706:4516:3016:589 h 45 min
1706:1706:4616:3016:599 h 45 min
1806:1806:4616:3116:599 h 44 min
1906:1806:4716:3116:609 h 44 min
2006:1906:4716:3216:609 h 44 min
2106:1906:4816:3217:009 h 44 min
2206:2006:4816:3217:019 h 44 min
2306:2006:4916:3317:019 h 44 min
2406:2106:4916:3417:029 h 45 min
2506:2106:4916:3417:039 h 45 min
2606:2106:5016:3517:039 h 45 min
2706:2206:5016:3517:049 h 45 min
2806:2206:5016:3617:049 h 46 min
2906:2206:5116:3717:059 h 46 min
3006:2206:5116:3717:069 h 46 min
3106:2306:5116:3817:069 h 47 min

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

What about vitamin D in December?

In December the sun doesn't climb high enough in Tokyo for vitamin D synthesis: the season to mind your diet or consider supplementation.

See the Tokyo vitamin D guide