Many people swear by morning meditation to clear the mind and help them stay more present all day long.
But for some people, meditation during the "afternoon slump" (when they'd normally crave cookies) is the best time to go within, transcend the craving and tap into a more peaceful state. The average craving only lasts 9 minutes, so imagine what a powerful Mindful Eating tool an afternoon meditation (vs. sugary snack snack) can be.
Still other people prefer the after-work meditation ritual, like Mr Rogers changing his clothes when he walks in the door. They use it to shake off the work day, tap into what it feels like to be "on vacation till tomorrow." Any time a thought of work or "worry of the world" arises, they get to practice letting go, and saving it to come back to tomorrow, when they're fresh.
Then there are those who love to meditate before bed. They start with a Gratitude practice and then settle into a peaceful, quieter state that helps them drift off to sleep more easily.
Whatever time of day feels most inviting to you, do it then...And--most importantly--practice daily, if only for 5 minutes at first. The more you feel comfortable settling into daily meditation, the easier it will be to sit for longer periods as time goes by and you feel ready. Try different times of day too-you may be surprised to find the best time for you is one you didn't expect...
This is your meditation practice, whether you're a beginner or more experienced. Make it yours.