At the summer solstice, the sun rises at 03:00 and sets at 23:40, but stays just below the horizon–there is no darkness (no need for artificial lighting outdoors) from 23 May to 19 July under cloud-free conditions.
No solsticio de verán o sol sae ás 03:00 e ponse ás 23:40, pero mantense xusto por enriba do horizonte - non hai escuridade desde o 20 de maio ao 20 de xullo.