Week Number
Current week number
The current ISO week number and exact dates for the week.
Frequently asked questions
- How is the current week number calculated?
- We use the ISO-8601 standard, where weeks start on Monday and week 1 is the first week containing a Thursday. The number shown is calculated based on your local timezone.
- Are there 52 or 53 weeks in a year?
- Most years have 52 ISO weeks, but if the year starts on a Thursday (or Wednesday in a leap year), it has 53 weeks.