The recording time depends on the memory card used and the recording mode set.
The maximum recording time per movie at 1920x1080 is 29 min 59 sec.
A 16 GB memory card with a resolution of 1920x1080 would hold about 1 hour of film. (2 films)

Thank you very much for the answer. Do you know if it is possible to connect the camera to the mains? So that you don't have to take the battery out to charge it, but that you can film and charge it at the same time?