Daytime is the best time to scout out a villains lair

Darkness is mother nature's camouflage, and provides cover for any variety of nefarious activities, keeping you away from the prying eyes of those you may not wish to see you - but forget that, you're a 00! You should aim to waltz in to the villain's lair when they least expect it - the middle of the day! Taking them by surprise is your best bet to save the world, and therefore daylight infiltration is the best option.

Examples: Licence to Kill - Bond approaches baddie Robert Davi's hideout in broad daylight. There are many more examples throughout the series.