---
title: "init(to:allowedFields:maxFieldCount:sign:)"
framework: swiftui
role: symbol
role_heading: Initializer
path: "swiftui/systemformatstyle/dateoffset/init(to:allowedfields:maxfieldcount:sign:)"
---

# init(to:allowedFields:maxFieldCount:sign:)

Creates a format style that displays the offset between a comparison date and an anchor date that you provide.

## Declaration

```swift
init(to anchor: Date, allowedFields: Set<Date.ComponentsFormatStyle.Field> = [.year, .month, .week, .day, .hour, .minute, .second], maxFieldCount: Int = 2, sign: NumberFormatStyleConfiguration.SignDisplayStrategy = .automatic)
```

## Parameters

- `anchor`: The date the style uses to calculate the offset from the format input date.
- `allowedFields`: The units of time that may appear in the formatted output.
- `maxFieldCount`: The maximum number of units shown at once. For example, 1 hour, 34 minutes, and 23 seconds is shown as 1 hour, 34 minutes by default, but as 1 hour if maxFieldCount is set to 1.
- `sign`: The strategy for displaying a sign to signal whether the offset points toward the future or past.

## Discussion

Discussion The style uses a time-pattern representation (3:46) when allowedFields contains only .minute and .second, or contains .hour, .minute, and .second. For any other combination of fields, it uses calendar units like 3 months, 11 days.