Be careful, the words may have the same literal meaning, but they do not correspond to the same time! Morning is between 5am to 12pm. Noon for Greeks is approximately between 12pm to 4pm. The afternoon is approximately between 4 to 8pm. The evening is from 8pm to 12am and the night comes afterwards. However in actual speech "night" is rarely used when specifying the time. Usually both "evening" and "morning" are used for times between 1am and 2am. Afterwards it is always "morning". Although, if asked, people will refer to the time between 3am and 5am as "night", when specifying the time they will refer to it as "morning".
Γιατί με ξυπνάς στις τρεις το πρωί;
Why are you waking me up at three o'clock in the morning?
Μείναμε στο εστιατόριο μέχρι τις δύο to βράδυ.
We stayed at the restaurant until two o'clock in the evening.