On time and Well timed

On time adverb - At the expected time.

Well timed and on time are semantically related. in punctual topic. In some cases you can use "Well timed" instead an adjective phrase "On time", when it comes to topics like in time.

Well timed adjective - Done or happening at the appropriate or proper time.

On time and well timed are semantically related. Sometimes you can use "On time" instead an adjective phrase "Well timed".