Dec 7, 2025 · Week number. See here which week number this week has. On this website we've also listed annual and monthly calendars including 2025, 2026 and 2027.

What Week Is It Today?

There are just over 52 weeks in a year. The term "week" may also be used to refer to a sub-section of the week, such as the workweek and weekend. Ancient cultures had different "week" lengths, …

Check the current week number and convert between dates and week numbers on Weeknumber.com.

Week number according to the ISO-8601 standard, weeks starting on Monday. The first week of the year is the week that contains that year's first Thursday (='First 4-day week').

Sunday is the first day of week and Saturday if the last day of the week. The first week of the year is the week that contains January 4th, first 4 days of the year.

6 days ago · calendar-week.net shows the calendar week for the current date.