---
title: List Day Header Render Hooks
---

In List view, a "day header" is the row that displays the date above a group of events. Customize its appearance with these hooks. For the container elements of each day's section, see [List Day Render Hooks](list-day-render-hooks).

`listDayHeaderClass` - a [ClassName Input](classname-input)

`listDayHeaderInnerClass` - a [ClassName Input](classname-input) for each individual side of the day-header (left and right halves)

`listDayHeaderContent` - a [Content Injection Input](content-injection)

`listDayHeaderDidMount`

`listDayHeaderWillUnmount`


## Argument

When the above hooks are specified as a function in the form `function(arg)`, the `arg` is an object with the following properties:

- `date` - Date object
- `isPast`
- `isFuture`
- `isToday`
- `el` - the element. only available in `listDayHeaderDidMount` and `listDayHeaderWillUnmount`

The following are only provided for `listDayHeaderInnerClass` and `listDayHeaderContent`:

- `text` - the formatted date text, as controlled by [listDayFormat](listDayFormat) and [listDayAltFormat](listDayAltFormat)
- `textParts`
- `dayNumberText`
- `hasNavLink`
- `level` - `0` for the primary [listDayFormat](listDayFormat) side, `1` for the [listDayAltFormat](listDayAltFormat) side