Thank you for your response.Sorry but I'm afraid it's not possible to modify the system date on a non-rooted device. I think it should be possible using the shell script action with the rooted option, using a command like: adb shell "date `date +%m%d%H%M%Y.%S`"
the shell script action with the rooted option, using a command like: adb shell "date `date +%m%d%H%M%Y.%S`"