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# iso8601(_:)

Creates the ISO 8601 representation of the timezone with hours, minutes, and optional seconds.

```
static func iso8601(_ width: Date.FormatStyle.Symbol.TimeZone.Width) -> Date.FormatStyle.Symbol.TimeZone
```

## Parameters

`width`

Specifies the width of the string result.

## Return Value

A timezone format style appropriate for the locale and specified width.

## Discussion

For example, `-0700` ([`Date.FormatStyle.Symbol.TimeZone.Width.short`](/documentation/Foundation/Date/FormatStyle/Symbol/TimeZone/Width/short)) or `-07:00` ([`Date.FormatStyle.Symbol.TimeZone.Width.long`](/documentation/Foundation/Date/FormatStyle/Symbol/TimeZone/Width/long)).

---

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