Modified startup script, such that it asks to set the time before launching the photobooth, when specifying argument 'set-time'. This is useful when you use the box without an internet connection and thus would end up with wrong timestamps otherwise.

photobooth.sh

@@ -4,7 +4,11 @@ PHOTOBOOTH_DIR=/home/pi/photobooth
 
 cd "${PHOTOBOOTH_DIR}"
 
-sudo ./photobooth.py > photobooth.log 2> photobooth.err
+if [[ $1 == "set-time" ]]; then
+  sudo gnome-control-center datetime
+fi
+
+sudo python photobooth.py >>photobooth.log 2>>photobooth.err
 
 cd -