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# abbreviationDictionary

Returns a dictionary holding the mappings of time zone abbreviations to time zone names.

```
class var abbreviationDictionary: [String : String] { get set }
```

## Return Value

A dictionary holding the mappings of time zone abbreviations to time zone names.

## Discussion

Note that more than one time zone may have the same abbreviation—for example, US/Pacific and Canada/Pacific both use the abbreviation “PST.” In these cases, [`abbreviationDictionary`](/documentation/Foundation/NSTimeZone/abbreviationDictionary) chooses a single name to map the abbreviation to.

---

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