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

# Calendar.Component.second

Identifier for the second unit.

## Declaration

```swift
case second
```

## See Also

### Specifying Hours, Minutes, and Seconds

- [Calendar.Component.hour](foundation/calendar/component/hour.md)
- [Calendar.Component.minute](foundation/calendar/component/minute.md)
- [Calendar.Component.nanosecond](foundation/calendar/component/nanosecond.md)