A nice feature of Ubuntu is the Wallpaper changer which can be configured in "Appearance" settings.
Is there a possibility to do that with elementary OS?
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Sign up to join this communityAnother great tool for this is Variety I downloads wallpapers filtered by keyboards unto your computer and changes them in over time. It works great with elementary OS, though you have to adjust the settings to allow Variety to set the greeter wallpaper. Still, it's a third-party ppa so use at your own risk.
sudo add-apt-repository ppa:peterlevi/ppa
sudo apt-get update
sudo apt-get install variety
I don't think that's possible with onboard tools.
But there are several 3rd party applications delivering this feature.
You can use Wallch for that. You can install it via Software Center.