Enter the date
Works for any date, past or future. The result also includes the ISO week and day of year.
=Day of week
Thursday
Date1 January 2026
Day of weekThursday
Week (ISO)1 / 2026
Day of year1 / 365
Days left in year364 days
Leap yearNo
Enter the date
Works for any date, past or future. The result also includes the ISO week and day of year.