---
title: dayOfYear
framework: foundation
role: symbol
role_heading: Type Property
path: foundation/nscalendar/unit/dayofyear
---

# dayOfYear

Identifier for the nanosecond unit.

## Declaration

```swift
static var dayOfYear: NSCalendar.Unit { get }
```

## See Also

### Specifying Weeks and Days

- [weekOfYear](foundation/nscalendar/unit/weekofyear.md)
- [weekOfMonth](foundation/nscalendar/unit/weekofmonth.md)
- [weekday](foundation/nscalendar/unit/weekday.md)
- [weekdayOrdinal](foundation/nscalendar/unit/weekdayordinal.md)
- [day](foundation/nscalendar/unit/day.md)
- [isRepeatedDay](foundation/nscalendar/unit/isrepeatedday.md)