Day 104 of the year
The 104th day of 2026 is Tuesday, April 14, 2026. It was 162 days ago.
Where day 104 lands in other years
The calendar date for a given day number moves only because of leap years. In a common year day 104 is one date; from 1 March in a leap year it shifts back by one.
| Year | Date | Weekday | Leap year |
|---|---|---|---|
| 2026 | April 14 | Tuesday | no |
| 2027 | April 14 | Wednesday | no |
| 2028 | April 13 | Thursday | yes |
| 2029 | April 14 | Saturday | no |
| 2030 | April 14 | Sunday | no |
Day 104 in context
Day 104 sits in April, on the 14th of the month, in the second quarter. By that point 103 days of the year have already gone and the year is 28.5% complete.
| Anchor | Day number | Distance from day 104 |
|---|---|---|
| 1 January | 1 | 103 days before |
| 1 April | 91 | 13 days before |
| 1 July | 182 | 78 days after |
| 1 October | 274 | 170 days after |
| 31 December | 365 | 261 days after |
Counting to and from day 104
Ordinal day numbers make in-year arithmetic trivial: the gap between two dates in the same year is just the difference of their day numbers. Day 104 minus today's day 266 gives 162 days, with no month lengths to reason about. That is exactly why batch codes, expiry stamps and flight schedules use them.
Questions
- What date is day 104 of the year?
- Tuesday, April 14, 2026.
- What weekday is it?
- A Tuesday in 2026.
- How far away is it?
- 162 days ago.
Reading the number back
To go the other way, from a calendar date to a day number, add up the lengths of the months before it and then add the day of the month. For April 14 in 2026 that is 90 days across the earlier months plus 14, giving 104. The only wrinkle is February, which is why the same date can carry two different day numbers depending on whether the year is a leap year.