3 days ago · Find the current week number and explore annual and monthly calendars for upcoming years.

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.

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').

Jan 25, 2025 · A calendar week typically starts on Monday and ends on Sunday, although this can vary depending on the specific week numbering system. The first week of the year, often referred to as …

What Week Is It Today?

Dec 29, 2025 · Check the current week number and convert between dates and week numbers on Weeknumber.com.

Plan your schedule with ease using our yearly and monthly calendars. Access public holiday calendars for the current and upcoming years.

2 days ago · See what week of the year it is along our week number calendar. See the current week number to find out how far into the year we are.

Find your ISO 8601 week number—weeks start Monday and week 1 holds January 4. Perfect for sprints, payroll, logistics.

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, …