As far as I remember Murphs took just over an hour. They have to allow time for resting between some stages. I was there because he was quite local to me, but my vet gave me no clues although I couldn't see anything obvious wrong. I'm glad to say he passed but it is so nerve wracking. Sending you loads of positive vibes and keeping my fingers crossed.
About an hour unless there is something obviously wrong and then (as in my case) about 15 minutes! Fingers crossed for you, the longer you wait the better the news maybe ??
Couple of hours normally. Best of luck, it's horrible waiting. I had one vetted whilst I was at work and then came the fateful phone call (I ran out of a meeeting!!!!) to say it had failed
If you go through everything that the vet checks on a full five stage then you will have a more clear picture of how long it takes, usually around an hour and a half.