FR 3040 then FR 6927 at Barcelona
Prague → Barcelona → Rome
Timetable, Barcelona time
21:15FR 3040 from Prague at the gate
09:05FR 6927 to Rome leaves the gate
11 h 50 apart on the timetable, overnight
The last days
FR 3040 and FR 6927 weren’t both flown 15 min to 12 h apart in the last 21 days.
Statistics from past flights, not live flight information. Always check times and your connection with your airline, and don’t base travel or booking decisions on these numbers.