It’s been six years since this feature was originally requested, and it’s still very much needed.
We use Monday to manage an event calendar, and currently, there’s no way to add both a start and end time in the Date column. Right now, we can only set the start time, which makes it difficult to represent events accurately, especially since our events can range anywhere from 1 to 8 hours long.
Even a separate “Time Range” column, similar to Timeline, that allows input for both a start and end time, and displays correctly in Calendar View, would be a huge improvement and make Monday much more usable for scheduling.