>>79008761They are typically on time and usually very punctual, but there is about a +/-2min window for your average trains. The bigger / busier the line is, the more punctual they are expected to be, but there is also no helping if something goes wrong or there is a track blockage. Sometimes they have to delay due to a malfunctioning gate preventing tracks from being closed off as well.
If they are late, they will usually give you a pass that tells your boss that you are late due to the railway. Nothing generally comes of this and your boss will just tell you "fine, get to work now."