Task: In the Trainline app, Search for the Goteborg to Linkoping central Bus on September 1, 2023, at 4:00 AM in Sweden.
Steps:
Open the Trainline app
Click on the from option
Type "Goteborg" in from search bar
click on the Goteborg central first result
Type "Linkoping central" in To search bar
Click on the Linkoping central result
Click on the Outbound date to select the 1 September 2023 date
Click on the 1 September 2023 date
Click on the save option at top right of the screen
Click on the 2:00AM time option in the outbound section
Scroll up the hour section to view the 4 
Click on the Done button 
click on the Find times and prices button
Click on the bus icon at top of the screen