erm.. xp helper is it the 1 u get at the start ? if so then yes u have 24 houres to use the 3 houres of it, if u start training and u got dced or u go to town to bank ( get pots and stuff ) it will stop after 20 sec so u get all the 3 houres to train
so is gold ticket if u start training and u just stop or get dced u have 24 houres to finish the 3 houres of a helper if not they disapiare
but if u are worried that ull lose sometime then u shouldnt it stops assoon as u stop geting atacked or u go in a party of 8