Day of the Week Finder
Find which weekday any date falls on.
How to use
- 1 Enter a date.
- 2 Read the weekday it falls on.
- 3 See whether it is a weekend.
- 4 Check its ordinal day within the year.
About Day of the Week Finder
The Day of the Week Finder tells you which weekday a date falls on — past, present or future — and adds a couple of useful extras: whether that day is a weekend, and which numbered day of the year it is.
Enter a date and you immediately get the weekday name, a Sunday-zero index, a weekend flag and the day-of-year count.
Plenty of everyday questions come down to "what day was that?".
You might be checking the weekday of a historical date, planning an event and wanting to know if it lands on a weekend, or working out the day for a date far in the future.
The day-of-year figure — where 1 January is day one and, in a leap year, 31 December is day 366 — is useful for logs, fiscal calculations and anything that indexes the year by ordinal day.
The tool anchors date-only inputs to UTC midnight, so the weekday it reports does not change with your timezone, and it accounts for leap years automatically when counting the day of the year.
Like the rest of My Tools Garage, it runs entirely in your browser with nothing sent anywhere.
FAQ
Does it work for past and future dates?
Yes. Any valid date works, whether it is centuries ago or far in the future.
What is the day-of-year number?
It is the date’s position within its year — 1 January is day 1, and the last day is 365, or 366 in a leap year.
Will my timezone change the weekday?
No. Dates are anchored to UTC midnight, so the weekday is the same wherever you are.