Day 180 of the year
The 180th day of 2026 is Monday, June 29, 2026. It was 86 days ago.
Where day 180 lands in other years
The calendar date for a given day number moves only because of leap years. In a common year day 180 is one date; from 1 March in a leap year it shifts back by one.
| Year | Date | Weekday | Leap year |
|---|---|---|---|
| 2026 | June 29 | Monday | no |
| 2027 | June 29 | Tuesday | no |
| 2028 | June 28 | Wednesday | yes |
| 2029 | June 29 | Friday | no |
| 2030 | June 29 | Saturday | no |
Day 180 in context
Day 180 sits in June, on the 29th of the month, in the second quarter. By that point 179 days of the year have already gone and the year is 49.3% complete.
| Anchor | Day number | Distance from day 180 |
|---|---|---|
| 1 January | 1 | 179 days before |
| 1 April | 91 | 89 days before |
| 1 July | 182 | 2 days after |
| 1 October | 274 | 94 days after |
| 31 December | 365 | 185 days after |
Counting to and from day 180
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 180 minus today's day 266 gives 86 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 180 of the year?
- Monday, June 29, 2026.
- What weekday is it?
- A Monday in 2026.
- How far away is it?
- 86 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 June 29 in 2026 that is 151 days across the earlier months plus 29, giving 180. 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.