Org mode actually uses both square and angle brackets for timestamps [1], but the square-ones are inactive, i.e. they don't show up in the agenda view. I guess

Org mode actually uses both square and angle brackets for timestamps [1], but the square-ones are inactive, i.e. they don't show up in the agenda view. I guess the angle ones are the most useful, though. [1] https://orgmode.org/manual/Timestamps.html https://orgmode.org/manual/Timestamps.html