In the UK, tea time typically refers to the time at which afternoon tea is served. This time is usually given as 4:00 PM, but individuals may be earlier or later depending upon work schedules and breaks. Not everyone takes tea every day, and it may simply be an afternoon snack or can be an elaborate feast depending upon the occasion. Some people observe a slightly later tea called meat tea, which is usually heavier and is similar to the American dinner.
While tea time in the UK may be the general name for this afternoon snack or meal, Americans, especially those with kids, may think of this mid afternoon time as snack time. It’s about this time of day that children are returning from school, and are usually hungry for a snack that will hold them over until the evening meal. Afternoon daycares and after care programs may offer a snack to kids at this time of day, and adults may find themselves quite willing to join in because it can be several hours until supper/dinner.