An option to override this is a must, I frequently use VPNs and as a result appear in many different countries through-out the day - It's bad enough with google

An option to override this is a must, I frequently use VPNs and as a result appear in many different countries through-out the day - It's bad enough with google repeatedly blocking my accounts for suspicious logins, without having to worry about timezone differences too. Also, it'd be nice to ALERT me when my timezone has changed and give me an option to keep the old one, or use what you think my current one is.