Exceljet

Quick, clean, and to the point

Get day name from date

Excel formula: Get day name from date
Generic formula 
TEXT(B4,"dddd")
Explanation 

If you need to get the day name (i.e. Monday, Tuesday, etc.) from a date, there are several options depending on your needs.

Do you just want to display the day name?

If you only want to display a day name, you don't need a formula – you can use a custom number format. Select the date, then go to Format cells (Ctrl + 1 or Cmd + 1)  > Custom, and enter one of these custom formats:

"ddd"  // "Wed"
"dddd" // "Wednesday"

Excel will display only the day name, but it will leave the date value intact.

Do you want to convert the date into a day name?

If you want to convert the date value to a text value, you can use the TEXT function with a custom number format like "ddd". The formula looks like this:

=TEXT(B4,"ddd")

The TEXT function converts values to text using the number format that you provide. Note that date is lost in the conversion, only the text for the day name remains.

Handling an empty date

If you use the formula above with an empty cell, you'll get "Sat" as a result, since zero in the Excel date system is treated as "00-Jan-1900", which is a Saturday. To work around this issue, you can adjust the formula like this:

=IF(A1<>"",TEXT(A1,"ddd"),"")

Literally: If A1 is not blank, return the TEXT formula, otherwise return an empty string ("").

A more flexible way to get a day name from a date

For maximum flexibility, you can map a weekday number to a day name directly with the CHOOSE function like so:

=CHOOSE(WEEKDAY(B4),"Sun","Mon","Tue","Wed","Thu","Fri","Sat")

In this case, enter the weekday names you want to return (abbreviated or not) as values in CHOOSE, after the first argument. WEEKDAY will extract a weekday number, and CHOOSE  will use this number to return the nth value in the list. This works because WEEKDAY returns a number 1-7 that corresponds to a given day of the week. With default settings, Sunday = 1 and Saturday = 7. See WEEKDAY for more info.

CHOOSE is more work to set up, but it is also more flexible, since it allows you to map a date to any values you want (i.e. you can use values that are custom, abbreviated, not abbreviated, different language, etc.)

Author 
Dave Bruns

Excel Formula Training

Formulas are the key to getting things done in Excel. In this accelerated training, you'll learn how to use formulas to manipulate text, work with dates and times, lookup values with VLOOKUP and INDEX & MATCH, count and sum with criteria, dynamically rank values, and create dynamic ranges. You'll also learn how to troubleshoot, trace errors, and fix problems. Instant access. See details here.