Hi @nouahenri,
Like @frontoftheline mentioned you would need the Timer Picker component made by NoCode Monkey! : 🐒 Time Picker | New Component from NoCode Monkey Because the date picker doesn’t give the option for only time but it has a date & time option which you don’t need.
If you couldn’t buy it you would need to build a own one with drop-downs and collections, unfortunately! You can add this feature request here : https://adalo.canny.io/
Thank you