Aide LibreOfficeDev 25.2
Calculates the difference between two date values. Returns the number of days between the two days. May return a fraction of a day when the arguments include time parts.
JOURS(date_2;date_1)
date_1 est la date de départ, date_2 est la date de fin. Si date_2 est une date antérieure à date_1 le résultat est un nombre négatif.
=DAYS(TODAY();"2010-01-01")) returns the number of days from January 1, 2010 until today.
=JOURS("10-10-1990";"10-10-1980") renvoie 3652 jours.
=DAYS(NOW(); TODAY()) returns a fraction of the current day.