In Excel: use =WEEKDAY(date, 2) — it returns the day of the week as a number, where return_type 2 numbers Monday as 1 through Sunday as 7.
On this page8
Syntax
Arguments
| Argument | required / optional | Description |
|---|---|---|
serial_number | required | The date to evaluate, as a cell reference, a date, or a serial number. |
return_type | optional | Controls the numbering: 1 (or omitted) = Sunday(1) to Saturday(7); 2 = Monday(1) to Sunday(7); 3 = Monday(0) to Sunday(6). |
Related functions
In the result cell type =WEEKDAY( and click the cell that holds the date.
Type a comma, then 2 so that Monday counts as 1 and Sunday as 7 (the ISO numbering).
Close the bracket and press Enter to get a number from 1 to 7.
To test for a weekend, wrap it in IF: =IF(WEEKDAY(A2, 2) > 5, "Weekend", "Weekday").
If you need the day name rather than a number, use =TEXT(A2, "dddd") instead.
What this does
WEEKDAY takes a date and returns which day of the week it falls on, as a NUMBER from 1 to 7 rather than a name. The optional return_type decides where the week starts: the default 1 runs Sunday(1) to Saturday(7), while 2 — the common ISO choice — runs Monday(1) to Sunday(7), and 3 runs Monday(0) to Sunday(6). Because it gives a number, WEEKDAY is built for logic: flagging weekends, filtering by day, or feeding an IF. If you want the day NAME instead, use TEXT(date, "dddd") rather than WEEKDAY. The same idea underpins a lot of everyday Excel work, so the few minutes spent getting it right here pay back across every sheet you build afterwards. Treat it as a pattern, not a one-off, and it stops being something you look up and starts being something you reach for. The difference between a quick fix and a sheet you can trust is the extra minute you spend validating “find day of week from date in excel”. Start on a copy or a tiny sample, keep the affected cells visible, and compare the result with the outcome you expected before you touch the real workbook. When a formula is involved, keep the inputs labelled beside it, reference cells instead of typing values, and apply number formatting only after the result checks out. The point is a workflow that saves repeating the same clicks every week, but the practical win is that someone else can open the file and understand what happened without asking you.
A worked example
Cell A2 holds the date 2026-06-03 (a Wednesday). =WEEKDAY(A2, 2) returns 3, because with return_type 2 Monday is 1, Tuesday 2 and Wednesday 3. With the default, =WEEKDAY(A2) returns 4, since Sunday is 1 there. To flag weekends regardless of locale: =IF(WEEKDAY(A2, 2) > 5, "Weekend", "Weekday"). For the day name itself, =TEXT(A2, "dddd") returns "Wednesday". WEEKDAY is the building block for any logic that depends on the day of the week — weekend flags, shift schedules and day-based filters — because a plain number is easy to compare and feed into other formulas. Check the referenced cells, argument order and result type in your workbook. Start with the worked example before changing an input, then compare the changed result with the calculation you expected. An error value or a result of a different type is a reason to inspect the inputs and arguments.
In Google Sheets
Google Sheets support for this task has not been verified. Check the function, arguments and workflow in the target product before transferring the example. Matching formula notation does not establish identical behaviour. The aim was to get you unstuck fast and leave you a little more capable than a copy-paste would. The answer is at the top and the detail above shows why it holds — so the next time a colleague asks, you can answer without reaching for search. For “find day of week from date in excel”, keep the input cells and the result visible while you check the formula in Excel. Follow the worked example and change one input at a time. The steps explain the workbook calculation; this page does not run a live calculator for that task.
Common mistakes
- Expecting a day name —
WEEKDAYreturns a number; use TEXT(date, "dddd") when you want the word. - Forgetting the return_type and assuming Monday is 1 — with the default, Sunday is 1 and Monday is 2, which shifts every weekend test.
- Pointing
WEEKDAYat text that looks like a date but is not a real date value, which gives a#VALUE!error; convert it withDATEVALUEfirst.
Frequently asked questions
How do I make Monday equal 1?
Pass 2 as the second argument: =WEEKDAY(A2, 2) numbers Monday as 1 through Sunday as 7. Without it, the default return_type 1 makes Sunday 1 and Saturday 7.
How do I get the name of the day, not a number?
Use TEXT instead of WEEKDAY: =TEXT(A2, "dddd") returns the full day name such as "Wednesday", and "ddd" returns the short form "Wed".
How do I flag weekends with WEEKDAY?
Use return_type 2 and test for 6 or 7: =IF(WEEKDAY(A2, 2) > 5, "Weekend", "Weekday"). Because Saturday is 6 and Sunday is 7, anything above 5 is a weekend day.