To dream of time travel represents your wish to escape from your present reality. Preoccupation with past events or speculation about the future.
Time travel to the past may reflect how you are doing things you never got to do. Talking to people about the past or researching the past. Noticing or talking to people about what life was like when you weren't around. Looking at old photos, discussing family history, or nostalgia.
Time travel to the future may reflect discussions about what is expected to happen. Being around people who are ahead of you or more advanced than you are. Thinking about what you expect to happen. Idealizing potential outcomes.