ffmpeg, if you don't mind the command line.. there's only two options you really have to know for editing, -ss and -t , starting time and length, respectively.. also don't forget that first -i for input file name, output file name is always last
eg, ffmpeg -i input.mp4 -ss 00:01:40 -t 00:05:00 output.mp4
that would clip out five minutes starting at a minute forty seconds in, the file names are obvious