When looking up the best route using public transport, you get something like 4 the possibilities that are closest to the requested timing. But you could also open up the schedule explorer. This allowed you to scroll further in the future or past.
Could... indeed, because the feature has been dropped silently by Google. What a pity to loose such a useful feature. Alternative now is to move your desired timing, which you can easily do in increments of 15'.
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