If trains leave at 1:45, 2:45, 3:45, 4:45... how would you describe this in English?
I'm sure "Trains leave at every 45 minutes." is wrong, but I have no idea how to describe this.
If trains leave at 1:45, 2:45, 3:45, 4:45... how would you describe this in English?
I'm sure "Trains leave at every 45 minutes." is wrong, but I have no idea how to describe this.
You can say:
(The) trains leave every hour at (a) quarter to the hour.
Or:
(The) trains leave hourly at (a) quarter to the hour.