Almost any time you need an energy boost or increased focus. However, we usually recommend that Matcha is consumed in the morning and early afternoon wherever possible due to the caffeine content, it is not advisable to drink Matcha just before bed (even though the caffeine content is still much lower than coffee and a lot of other types of teas). Morning time is very beneficial and is a good time to take Matcha after lunch is also good for avoiding the mid-afternoon slump. Some of our customers say OMGTea keeps them alert and awake during an enjoyable night out.