I am thinking of going to the theatre at Budapest at 19:00, is it safe to take the 11:08-16:19 train? The 09:08-14:19 train is very expensive and I'd rather not pay more than double. Is there a statistics on the Railjets being on time? If that train doesn't go (is that a thing? I mean, flights not going happen but I am not particularly familiar with the Railjet, I have ridden it once four years ago) will my ticket be valid for the 13:08-18:19? This is in September so snow in Hungary is somewhat unlikely. The last time it snowed in the lower lands of Hungary in September was in 1936, so I will call it somewhat unlikely.
Yes, this is ridiculous but I it's a train in Hungary and I was born Hungarian (fixed now) and I have some memories of the Hungarian train system. But, it's a Railjet so I am willing to risk it.