---
title: "CFTimeZoneSetAbbreviationDictionary(_:)"
framework: corefoundation
role: symbol
role_heading: Function
path: "corefoundation/cftimezonesetabbreviationdictionary(_:)"
---

# CFTimeZoneSetAbbreviationDictionary(_:)

Sets the abbreviation dictionary to a given dictionary.

## Declaration

```swift
func CFTimeZoneSetAbbreviationDictionary(_ dict: CFDictionary!)
```

## Parameters

- `dict`: A dictionary containing key-value pairs for looking up time zone names given their abbreviations. The keys should be CFString objects containing the abbreviations; the values should be CFString objects containing their corresponding geopolitical region names.

## See Also

### System and Default Time Zones and Information

- [CFTimeZoneCopyAbbreviationDictionary()](corefoundation/cftimezonecopyabbreviationdictionary().md)
- [CFTimeZoneCopyAbbreviation(_:_:)](corefoundation/cftimezonecopyabbreviation(_:_:).md)
- [CFTimeZoneCopyDefault()](corefoundation/cftimezonecopydefault().md)
- [CFTimeZoneCopySystem()](corefoundation/cftimezonecopysystem().md)
- [CFTimeZoneSetDefault(_:)](corefoundation/cftimezonesetdefault(_:).md)
- [CFTimeZoneCopyKnownNames()](corefoundation/cftimezonecopyknownnames().md)
- [CFTimeZoneResetSystem()](corefoundation/cftimezoneresetsystem().md)