3 ms·Because if you go up to ten you reach the second thumb. It's a rule of thumb not of thumbs.by rat9988 7y agoBecause if you go up to ten you reach the second thumb. It's a rule of thumb not of thumbs.CSSer 7y agoBut what if we count in hexadecimal?xk3 7y agothen it's a maximum of 8192 time zones