"In time" has three meanings that I can think of. 1. in time = eventually "You will get a job in time." "In time, he will learn to play the piano." 2. in time = arriving at the appropriate time "Were you in time to see the show?" "You got here just in time." 3. in time = in tempo "He was moving in time with the music." Another common phrase is "in good time" (at least in the southern US). This is usually used to convince someone to be patient because something will eventually happen. PersonA: "I'll never get a girlfriend!" PersonB: "It will happen in good time." Hope this helps!

in time =without being tardy 及时，适时；Simeon finished the work in time. 及时完工了 on time =at the expected time 按时，准时；Simeon finished the work on time. 按时完工了