kalendermånad
Kalendermånad (calendar month) is a unit of time used in civil calendars. It denotes the interval from the first day to the last day of a given month in the Gregorian calendar. The term is common in Swedish and Norwegian and is often used in English-language texts as calendar month.
Lengths vary by month: February has 28 days in common years and 29 in leap years; January,
Kalendermånads are used in dating, finance, statistics, planning, and administration. Data are typically reported by calendar
Related concepts include the lunar month (synodic month), which is about 29.53 days and does not align
Etymology and usage: the word combines kalendar (calendar) and månad (month). In Nordic languages, forms such