$ ffmpeg -ss 61.0 -t 2.5 -i input.mp4 -filter_complex "[0:v] split [a][b];[a] palettegen [p];[b][p] paletteuse" output.gif
-ss 61.0
: start gif at 61.0 seconds into video-t 2.5
: gif duration of 2.5 seconds (starting at 61.0 seconds into video)
convert input.gif -coalesce -repage 0x0 -crop 343x310+0+65 +repage output.gif