What is the day of the year?

It is the ordinal position of a date within its year, counting 1 January as day 1. So 1 February is day 32, and 31 December is day 365 in a common year or 366 in a leap year. This number is sometimes called the ordinal date or, loosely, the Julian day.

How does a leap year change the day number?

Up to and including 28 February the day numbers are the same in any year. From 1 March onward, a leap year shifts every later date up by one because of the extra 29 February. The calculator accounts for this, so the figure is correct for both common and leap years.

Is the ordinal date the same as the Julian Date?

Not quite, and the names cause confusion. The ordinal date here is the day within the current year, from 1 to 365 or 366, which is what shows up in logs and file stamps. The astronomer's Julian Date is a running count of days since 4713 BC, a much larger number used in astronomy. This tool gives the ordinal day of the year.

Day of the Year Calculator

Find which numbered day of the year a date is. Enter a date and the calculator shows its ordinal day from 1 to 365 or 366, the days remaining in the year, and how far through the year the date sits as a percentage. Free and instant in your browser.

Find which numbered day of the year a date is, counting 1 January as day 1. Enter a date to get its ordinal day from 1 to 365 or 366, the days left in the year, and how far through the year it sits as a percentage. It answers what day of the year is it, and the day number sometimes used in logs and file names.

Leap-year accurate
100% free
No sign-up, no app
Instant as you type
Works offline after first load

Read the guide: What Day of the Year Is It

Date

Day of the year

Day 212 of 365

Friday, 31 July 2026.

Day number

212

Days left in year

153

Year is

58.1% gone

How to use it

1
Pick a date

Choose any date, or leave it on today.
2
Read the day number

See the ordinal day of the year, where 1 January is day 1.
3
See the remainder

Check how many days are left in the year and the percentage that has passed.

When it comes in handy

Logs and filenames

Use the ordinal day number, sometimes called the Julian day, in records and file names.

Progress through the year

See how far through the year a date sits, handy for goals and reviews.

Planning and counting

Know how many days are left in the year from a given date.

Instant, accurate & 100% in your browser

The calculation runs right here in your browser, counting the real calendar so leap years and month lengths come out right. Nothing you type is sent to a server, there is no sign-up and no limit, and once the page has loaded it keeps working even with no connection.

Frequently asked questions

What is the day of the year?: It is the ordinal position of a date within its year, counting 1 January as day 1. So 1 February is day 32, and 31 December is day 365 in a common year or 366 in a leap year. This number is sometimes called the ordinal date or, loosely, the Julian day.
How does a leap year change the day number?: Up to and including 28 February the day numbers are the same in any year. From 1 March onward, a leap year shifts every later date up by one because of the extra 29 February. The calculator accounts for this, so the figure is correct for both common and leap years.
Is the ordinal date the same as the Julian Date?: Not quite, and the names cause confusion. The ordinal date here is the day within the current year, from 1 to 365 or 366, which is what shows up in logs and file stamps. The astronomer's Julian Date is a running count of days since 4713 BC, a much larger number used in astronomy. This tool gives the ordinal day of the year.

Age CalculatorExact age in years, months and days, plus your next birthday.Date Difference CalculatorYears, months, days and total days between two dates.Days Until CalculatorCount down the days and weeks to any future date.Birthday CountdownDays until the next birthday and the age you are turning.Countdown TimerLive days, hours, minutes and seconds to any event, with an embed code.Days Since CounterLive count-up in years, months, weeks and days since a date, with an embed code.

More from the Hivly network

Free sister tools on our other sites.

Length ConverterMetres, feet, miles, inches, km and more, instantly.Online Timer with AlarmSet a timer with a clear sound and visual alert when it ends.Scientific CalculatorPowers, roots, trig, logs, memory and history.

How to use it

Pick a date

Read the day number

See the remainder