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

# second

Identifier for the second unit.

## Declaration

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

## Discussion

Discussion The corresponding value is a double. Equal to kCFCalendarUnitSecond.

## See Also

### Specifying Hours, Minutes, and Seconds

- [hour](foundation/nscalendar/unit/hour.md)
- [minute](foundation/nscalendar/unit/minute.md)
- [nanosecond](foundation/nscalendar/unit/nanosecond.md)