@rachelandrew @Jack_Franklin @BenedekGagyi @alexnmoldovan @thekitze @jsheroes @benotist Ooh yes please! (can't wait to start using @benotist, BTW).
One thing I do when practicing, is note how long has elapsed and add minute markers to the speaker notes at key stages of my talk. Then, as I present I can sense check my progress against my planned timing.