Student or Learner
could you help me please with the difference between until and by in use?
Welcome to the forums.
You may not go to the cinema until you have finished your homework = you must finish your homework before you can go to the cinema.
by [as it is related to time] I will be at the station by 10.00 o'clock = I will reach the station at 10.00 o'clock at the latest.