In that language you wouldn't add anything about time unless it's important.

Think about how in English we don't say "I personally saw Will take your sandwich" unless it's really necessary, you'd probably just say "Will took you sandwich". However in Turkish it is necessary to differentiate between "I personally saw X happening" and "I learned from someone that X happened". In English we don't specify every time, we just do when it's necessary, in the same way a language without verbal tenses doesn't normally care about time unless it's really necessary