Time limit isn't as expected

Hi there,

Last weekend I installed Norton Family on my sons laptop (Windows 10).  I set up time restrictions and actually everything seemed to be working fine.  I set up the following rules:

2 hours, Sunday to Thursday (6am - 9pm)

4 hours, Friday and Saturday (6am - 9pm)

However at 6:53 AM I got a notification saying his daily time limit had been reached.  This can't be possible.  He'd need to have been using the laptop since 2:53 AM for him to accrue 4 hours of usage and I know he was sleeping plus it was outwith the hours allowed.

Is this a known issue, perhaps with timezones or suchlike?  Seems like it's counting properly, but not applying it to a UK time zone.

Thanks,

Simon