Siesta in Greece. The Greek people have different attitude to time. They don't live by the clock. The Greeks have a different opinion about when it's morning, afternoon and evening. 

You say Good Morning until 12:00. If you have agreed to meet in the 'afternoon', the earliest meant by this will be 18.00. In Greece, the evening meal begins no earlier than 21:00. Also no one will think anything of it if you telephone at 22:00. in the evening. However, 'siesta' time, between 15.00 and 17:00 is held as sacred. During the siesta, though, it is very unpopular to disturb someone. A siesta, is a short nap taken in the early afternoon, often after the midday meal. Such a period of seep is a common tradition in some countries, particularly those where the weather is warm.