Day number of the year calculator

Enter the date and get the number of the day from the beginning of the year, the end of the year or the number of days in a year. The day of the year is within the specified range. Depending on the year, it is either from 1 to 365 or from 1 to 366. It is easy to conclude that the first day falls on January 1, and the last day falls on December 31. There are generally two different calendars for calculating the day number, depending on the leap year and the common year.

The calculation in the calculator is made by specifying the date.

You just need to enter the appropriate date to get the desired result. Days as a unit of time are easily calculated by reference to the year. It is more difficult to calculate week numbers of the year, when the weeks may be in different years. In the case of days, such a scenario does not occur. Each day number is included in its entirety in one year only.

The number of days from the beginning of the year is related to the number of days until the end of the year and the number of days in the year. All these results can be obtained by using a conversion factor.

What day of the year?

The question of the number of the day of the year comes up very often. However, answering this question usually involves the use of a calendar or calculator. Undoubtedly, getting the opportunity to know the day of the year by date is a great help. Especially if it is possible to recognize whether it is an ordinary or a leap year. The date can contain any day, both in the past and in the future.

Day of year chart

DateDay number of the year
1-Jan1
2-Jan2
3-Jan3
4-Jan4
5-Jan5
6-Jan6
7-Jan7
8-Jan8
9-Jan9
10-Jan10
11-Jan11
12-Jan12
13-Jan13
14-Jan14
15-Jan15
16-Jan16
17-Jan17
18-Jan18
19-Jan19
20-Jan20
21-Jan21
22-Jan22
23-Jan23
24-Jan24
25-Jan25
26-Jan26
27-Jan27
28-Jan28
29-Jan29
30-Jan30
31-Jan31
1-Feb32
2-Feb33
3-Feb34
4-Feb35
5-Feb36
6-Feb37
7-Feb38
8-Feb39
9-Feb40
10-Feb41
11-Feb42
12-Feb43
13-Feb44
14-Feb45
15-Feb46
16-Feb47
17-Feb48
18-Feb49
19-Feb50
20-Feb51
21-Feb52
22-Feb53
23-Feb54
24-Feb55
25-Feb56
26-Feb57
27-Feb58
28-Feb59

The days numbers mentioned are always the same. Day numbers from 60 may vary depending on the year.