Day of the Week for Any Past or Future Date
Name the weekday of a calendar date and give its day-of-year number and how many days remain after it.
Processed entirely in your browser — nothing you enter here is ever uploaded.
Result
About this tool
This page opens the day-of-week calculator emphasizing what it is built for: any date at all, not just today. Pick a date decades in the past or years into the future and the weekday name appears the same way either time.
This makes it useful for a wide range of questions — what day of the week you were born on, what weekday a historical event fell on, or which day a future anniversary, deadline, or booking will land on before it is confirmed.
The calculation runs entirely in your browser using a neutral time basis, so leap years and month-length differences are handled automatically and the result never shifts depending on your own time zone.
Example. 29 February 2024 is a Thursday, day 60 of 366, with 306 days remaining. 1 March 2025 is day 60, because 2025 is not a leap year. 31 December reports 0 days remaining.
Limit. The date is a UTC calendar day with no time of day. Days remaining do not include the selected day. Week numbers are not computed on this page.