---
title: Calendar.Component.weekOfYear
framework: foundation
role: symbol
role_heading: Case
path: foundation/calendar/component/weekofyear
---

# Calendar.Component.weekOfYear

Identifier for the week of the year unit.

## Declaration

```swift
case weekOfYear
```

## See Also

### Specifying Weeks and Days

- [Calendar.Component.weekOfMonth](foundation/calendar/component/weekofmonth.md)
- [Calendar.Component.weekday](foundation/calendar/component/weekday.md)
- [Calendar.Component.weekdayOrdinal](foundation/calendar/component/weekdayordinal.md)
- [Calendar.Component.day](foundation/calendar/component/day.md)