## Uses of Class
java.time.temporal.WeekFields

- Packages that use WeekFields
  Package | Description
  --- | ---
  java.time.temporal | Access to date and time using fields and units, and date time adjusters.

- - ### Uses of WeekFields in java.time.temporal

    Fields in java.time.temporal declared as WeekFields
    Modifier and Type | Field | Description
    --- | --- | ---
    `static WeekFields` | WeekFields.`ISO` The ISO-8601 definition, where a week starts on Monday and the first week has a minimum of 4 days.
    `static WeekFields` | WeekFields.`SUNDAY_START` The common definition of a week that starts on Sunday and the first week has a minimum of 1 day.

    Methods in java.time.temporal that return WeekFields
    Modifier and Type | Method | Description
    --- | --- | ---
    `static WeekFields` | WeekFields.`of(DayOfWeek firstDayOfWeek, int minimalDaysInFirstWeek)` Obtains an instance of `WeekFields` from the first day-of-week and minimal days.
    `static WeekFields` | WeekFields.`of(Locale locale)` Obtains an instance of `WeekFields` appropriate for a locale.

Submit a bug or feature
For further API reference and developer documentation, see Java SE Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.
Copyright © 1993, 2026, Oracle and/or its affiliates. All rights reserved. Use is subject to license terms. Also see the documentation redistribution policy.