'in time' and 'by (time)'
Is 'in time' similar to 'by (time period)'?
for examples.

i'm supposed to finish my assignments in time (in this case, i know deadline, but implicit time)
i'm supposed to finish my assignments by Friday (but explicit time)

are both correct? and can be used?

Question

'in time' and 'by (time)'
Is 'in time' similar to 'by (time period)'?
for examples.

i'm supposed to finish my assignments in time (in this case, i know deadline, but implicit time)
i'm supposed to finish my assignments by Friday (but explicit time)

are both correct? and can be used?

Answer

in time sounds better and is more correct than by time