---
title: CFAbsoluteTime
framework: corefoundation
role: symbol
role_heading: Type Alias
path: corefoundation/cfabsolutetime
---

# CFAbsoluteTime

Type used to represent a specific point in time relative to the absolute reference date of 1 Jan 2001 00:00:00 GMT.

## Declaration

```swift
typealias CFAbsoluteTime = CFTimeInterval
```

## Discussion

Discussion Absolute time is measured by the number of seconds between the reference date and the specified date. Negative values indicate dates/times before the reference date. Positive values indicate dates/times after the reference date.

## See Also

### Data Types

- [CFGregorianDate](corefoundation/cfgregoriandate.md)
- [CFGregorianUnits](corefoundation/cfgregorianunits.md)
- [CFTimeInterval](corefoundation/cftimeinterval.md)