Back Кун тăршшĕ CV Tageslänge German Durée du jour French Күндүн узун-кыскалыгы Kirghiz Dagduur Dutch Dagens lengde NB Duração do dia Portuguese Долгота дня Russian
The length of the day is how long a day is. On Earth, a sidereal day is 23 hours and 56 minutes long, and a solar day is 24 hours. There are other planets with different types of day.