Please help in the preparation of smart form, which contains the following fields .
Departure Date and time
Arrival Date and time
Time spent on the road: Day, hour, minut
Example:
Departure: 3.5.2015 10:00 PM
Arival: 4.5.2015 11:15 PM
Time spent Result must be like: 1 Day, 1 Hour, 15 minuts.
Please help.