I turned up 1 hr late for my 2nd stage interview due to writing down the wrong time and didn't realise until after the interview. Has anyone ever recovered from this?

I set a reminder on my phone for 1 hr later than the interview should've been. The interviewer briefly mentioned some confusion about the interview start time, but at the time I assumed they were talking about them selves being confused. I did the interview and it went well. I only realised on the way home why they said that.

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I was on time for the 1st stage interview and was there for the second interview right on the hour but the wrong one.