The extension timer
I've always wanted to have wallpapers that change over time. Unfortunately there is no extension in TYPO3 that provides a really good timer. So I programmed an extension myself that does this. But the extension can do even more: It can create appointment calendars and combine appointment periods with each other. A series of appointments like "Every Tuesday from 11 a.m. to 1 p.m., just not during the holidays and public holidays" should no longer be a problem. It says 'should' because the extension is in beta.(translated with google 2022-10-31)
Text for odd hours only
In the morning you are interested in different topics than during the working day or after work. And at the weekend you have different information needs than during the working weekday. A website, especially if it is a one-pager, should take this into account. With Timer, they have the opportunity to respond to these different information needs of their users. But keep in mind that search engine robots from google and others have a hard time recognizing that the content of the page has changed dynamically. The only chance you have is to set the browser caching time to a low value in the meta tags and hope that google uses this information for the visit frequency of its search robots. The value of max-age is defined in seconds.
<meta http-equiv="cache-control" content="max-age=60">
This content item is only visible on odd hours. During even hours it is hidden.(translated by google 2022-10-31)