# Week Numbers

> FullCalendar v3 documentation, for an old release. Web version: https://legacy.fullcalendar.io/v3/week-numbers
>
> Latest version (v7): https://fullcalendar.io/docs/week-numbers.md

Display week numbers in various parts of your calendar views.

## Articles

- [weekNumbers](https://legacy.fullcalendar.io/v3/weekNumbers.md) - Determines if week numbers should be displayed on the calendar.
- [weekNumbersWithinDays](https://legacy.fullcalendar.io/v3/weekNumbersWithinDays.md) - Determines the styling for week numbers in month view and basic view.
- [weekNumberCalculation](https://legacy.fullcalendar.io/v3/weekNumberCalculation.md) - The method for calculating week numbers that are displayed with the weekNumbers setting.
- [weekNumberTitle](https://legacy.fullcalendar.io/v3/weekNumberTitle.md) - The heading text for week numbers.

## Demos

- [Week numbers activated](https://legacy.fullcalendar.io/v3/weekNumbers-demo)
- [weekNumbersWithinDays activated](https://legacy.fullcalendar.io/v3/weekNumbersWithinDays-demo)