Current Calendar Week Number
Current week of year! Always looking up the current calendar week number? No Problem. Here it is! Find the calendar week numbers for the next years. Check dates, timestamps and daylight saving time of weeks.
Calendar Week 38 in 2023
Mon. 2023-09-18 — Sun. 2023-09-24
Activate Calendar Weeks in Outlook 365
To show the week number in your Outlook calendar, you have to activate this in your calendar settings. Go to Settings => Calendar => View (HERE) and activate the option: "Show week numbers".
Getting Week numbers in Excel 365
You can calculate the week number in Excel 365 from a date with the ISOWEEKNUM() function. There is also
a second function for week numbers. WEEKNUM() starts counting in the week of January 1st.
The ISO weeks starts with 1 in the week with the first Thursday of the year.
The functions WEEKNUM() and ISOWEEKNUM() are also available in Google Spreadsheets.
About Week Numbers
Weeks in a Gregorian calendar year can be numbered for each year. This style of numbering is often used in European and Asian countries. It is less common in the U.S. and elsewhere.
The system for numbering weeks is the ISO week date system, which is included in ISO 8601. This system dictates that each week begins on a Monday and is associated with the year that contains that week's Thursday.
First week of year - Week W01
The first week is the week with the starting year's first Thursday in it (the formal ISO definition). There are some other definitions with the same result: The week with 4 January in it, the first week with the majority (four or more) of its days in the starting year or the week starting with the Monday in the period 29 December - 4 January.
Week 1 (W01) of 2023 goes from 2023-01-02 to 2023-01-08.
Last week of year - Week W52
28. December is always in the last week of its year. The week number can be described by counting the Thursdays: week 12 contains the 12th Thursday of the year.
Week 52 (W52) of 2023 goes from 2023-12-28 to 2024-01-03.
Current Week Numbers in Different Programming Languages
|Current Week number in PHP||
|Week number from Date in PHP||
|Current Week in Python||
|Calendar Week in Java||
|Current Week with MySQL||
|Current Week with GO||
|Current Week with C||
|Current Week with C#||