Weiher the electronic board for train schedules, railway platform, etc. The train Flugticket you buy will not specify the time but will only writes the valid date for use (ie the date you purchased the ticket). Here is a recommendation of an itinerary of three days that you can use https://wienerinfo78899.suomiblog.com/a-simple-key-f-r-wien-news-unveiled-37676093