Day 79 of the year
The 79th day of 2026 is Friday, March 20, 2026. It was 187 days ago. The date is March equinox.
Where day 79 lands in other years
The calendar date for a given day number moves only because of leap years. In a common year day 79 is one date; from 1 March in a leap year it shifts back by one.
| Year | Date | Weekday | Leap year |
|---|---|---|---|
| 2026 | March 20 | Friday | no |
| 2027 | March 20 | Saturday | no |
| 2028 | March 19 | Sunday | yes |
| 2029 | March 20 | Tuesday | no |
| 2030 | March 20 | Wednesday | no |
Day 79 in context
Day 79 sits in March, on the 20th of the month, in the first quarter. By that point 78 days of the year have already gone and the year is 21.6% complete.
| Anchor | Day number | Distance from day 79 |
|---|---|---|
| 1 January | 1 | 78 days before |
| 1 April | 91 | 12 days after |
| 1 July | 182 | 103 days after |
| 1 October | 274 | 195 days after |
| 31 December | 365 | 286 days after |
Counting to and from day 79
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 79 minus today's day 266 gives 187 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 79 of the year?
- Friday, March 20, 2026.
- What weekday is it?
- A Friday in 2026.
- How far away is it?
- 187 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 March 20 in 2026 that is 59 days across the earlier months plus 20, giving 79. 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.