Meditation improves memory, which means you need to repeat new things you learn fewer times to remember it. This is already extra time that you gain. Meditation also improves creativity and intellect, which makes you come up with effective and innovative solutions faster (some more time savings avoiding being stuck).
Resulting from brain improvement (literally, this is thanks to neuroplasticity) the reaction time shortens. If you need to be focused all the time, here are again some time efficiencies for you.