I've purchased these before and they all had regional settings in the user setting but not this batch.  I cannot use them because it puts me on London time which is 8 hrs ahead of me.  Changing settings in my operating system is temporary then back to London time in the middle of my work.  I can't return or get help from Dell.com as they are our of service and my last purchase of these were in 2023.  it's very annoying to have spent the money and save them until i need them and I can't use them. :(