Morkus from Orkus
I'm with [MENTION=467]Reynard[/MENTION] - taking a deep breath and giving it all you've got is an approach to jumping across a chasm. Because it takes time to take a deep breath, the GM might reasonably advance any "clocks" that are ticking in the situation.
But not one that's going to get you any farther across the chasm. Sure, the clocks tick on, but a ticking clock doesn't make you jump farther.