and if you want it to show in a view, just wrap it in blade tags
{{ now()->format('d-m-Y H:i'); }}
Just bear in mind that this is the SERVER time, and might be a different timezone to your user.
so 'Current' date time is relative to where you are in the world.
If you want to show the user's own date/time (and they cannot be bothered to look at their toolbar) then use javascript and get the time from the user's own browser.