Quick fine dodging advice (ie. just advice - no 'lectures' thanks)

[Rapt]

But it's very unlikely that the court will allow them to amend date and time on the information sheet. Which is why you DON'T tell the Police about the error.
Here endeth the lesson.

Not so...it happens quite often

[Lou Girardin]

The court will just laugh at you. Guy at work got a ticket with the wrong time, make and model of car. When his lawyer tried to use the errors as a reason to get off the charge the judge essentially told him to piss off, get a hair cut and get a real job.

If the time was 10 minutes out and he presented himself in court in the manner the Judges reply implies I'm not surprised.
Time AND date is a very different matter, it goes to the basic proof of the offence.