What Week of the Year Is It?

Are you trying to figure out what the current week number is?

We are currently in week 3 of 52 weeks in 2025, and today is day 15. This is calculated from today's date (January 15, 2025) using the ISO-8601 date standard.

How Many Weeks Are Left in the Year?

There are 50 weeks left in 2025. This is equivalent to a total of 350 days left in the year.

What Day Number Is It?

It is currently day 15 of 365 days in 2025. You can always use our day of the year page to see what day number it is or learn how to find it yourself.

What Is a Week Number?

A week number is the number of weeks into the year a specific date falls in, which is based on the ISO-8601 international date standard, where Monday is the first day of each week, and Sunday is the last.^[1] If the year begins mid-week, then the dates in the remainder of that week are considered to be in week 52 or 53 from the prior year, or just week 0 of the current year.

2025 Calendar With Week Numbers

The calendar below shows the week number for each day of 2025 listed on the left side of each week. Note that since the first day of January does not fall on a Monday, it is part of the final week of 2024. The current week is highlighted in yellow.

You can also use our online calendar to print monthly calendars and see holidays.

How To Calculate the Week Number Using Google Sheets or Microsoft Excel

You can also calculate the current week number in 2025 using spreadsheet software such as Google Sheets or Microsoft Excel. To do this, you can use the WEEKNUM formula.

For the Current Date

If you want to find the week number for the current date, then use the following function:

=WEEKNUM(TODAY())

For instance, if the current date is October 30th, then the formula might look like this with the result being week number 44, as seen in the graphic below:

For Any Date

If you want to find the week number for a specific date listed in another cell, for instance, cell A3, then you can use the following function:

=WEEKNUM(A3)

For example, if there is a date value in cell A3, then the formula might look like this:

If the date is listed in a cell other than A3, simply replace A3 with the cell containing the specified date.