title_body: Constructed languages or dialects for Time travellers
upvoted_answer: Ted Chang wrote "Story of Your Life" which was the basis for the movie Arrival. I thought both the book and the visual representation in the film were excellent examples of languages based on a travelers use of time. In this story understanding the language is to understand your life as a simultaneous event, and thus have access to all moments at once.
  
  You may also want to consider Jargon specific to your vision of time travel. Do paradox occur, and if so what is the resultant outcome? Do parallel realities exist, are there different types? Can futures be erased or overwritten, if so, what do you call a future that no longer exists, or a person lost in one? Do you have some sort of McGuffin for the travelling part? Is the language the means of travel? Do bodies travel or only minds?
  
  You might consider leveraging something like Hobo signs, notes left by other travelers, with help or warnings, that type of thing. Alternatively, Signals of fealty and place, such as a question and response or sing the local anthem to identify other travelers as friend or foe. Flushing out what you want them to communicate, as well as the mood or archetypes of the speakers, might help drive the sound and appearance of the language.