---
title: kCFAbsoluteTimeIntervalSince1970
framework: corefoundation
role: symbol
role_heading: Global Variable
path: corefoundation/kcfabsolutetimeintervalsince1970
---

# kCFAbsoluteTimeIntervalSince1970

The time interval between 1 January 1970 and the reference date 1 January 2001 00:00:00 GMT.

## Declaration

```swift
let kCFAbsoluteTimeIntervalSince1970: CFTimeInterval
```

## See Also

### Constants

- [kCFAbsoluteTimeIntervalSince1904](corefoundation/kcfabsolutetimeintervalsince1904.md)