---
title: All-Day Header Render Hooks
---

Customize the cell in the header area of TimeGrid view that labels the all-day section.

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

`allDayHeaderInnerClass` - a [ClassName Input](classname-input) for the inner wrapper of the all-day header cell. Useful for adjusting padding.

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

`allDayHeaderDidMount`

`allDayHeaderWillUnmount`


## Argument

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

- `text`
- `isNarrow`
- `view`
- `el` - the `<td>` element. only available in `allDayHeaderDidMount` and `allDayHeaderWillUnmount`