What is the day of the year?

It's the ordinal position of a date within its year — 1 January is day 1, 31 December is day 365 (or 366 in a leap year).

How many dagen are in a year?

365 in a common year and 366 in a leap year (when February has 29 dagen). This tool detects leap jaren automatically.

Day of the Year Calculator

Gratis day-of-year calculator. Enter a date to get its ordinal day nummer (1–366), the dagen remaining in the year, the total dagen in that year, and the percentage of the year elapsed.

Find which day of the year a date is, and how many dagen remain.

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