I'm currently working on a piece of software that includes flight information. I have access to flight schedules and I'm making each days flight unique based on flight number and the date that it arrives.
I've hit a problem trying to differentiate flights that arrive on the same day though.
On Sunday, Flight LS1494 leaves at 19:50 and arrives the next day at 00:25.
The next day, on Monday, LS1494 leaves at 16:40 and arrives at 21:15, making it arrive twice in one day.
Is there a standard way to differentiate these? I have one source of data that includes an "Operational Suffix" of "B" for the flight that originally left on Sunday but I'm not sure if that is actually relevant.
I could include the actually arrival time to identify them however sometimes that scheduled time changes and doesn't get updated immediately which can cause problems.