When My Laptop Showed the Wrong Time Zone

I opened my laptop after a week of travel and the clock was three hours off. My phone was right, the wall clock was right, but every meeting invite on the laptop looked wrong. I spent ten minutes assuming the calendar was broken before I checked the simplest thing: the time zone setting.

On my machine, automatic time zone was switched on, but it had not caught up after I connected to a hotel network. I turned automatic off, picked the city I was actually in, then turned it back on. That fixed the clock, but it also taught me to look at the setting before I trust the system to do it.

VPNs add another layer of confusion. When I connect through a VPN, some websites may guess my location from my IP address, while my operating system still uses the time zone I selected. Those two things can disagree. That does not always mean the laptop is wrong. It may mean the site is making a different guess. I check the device setting first, then the site.

My quick routine now is:

• Confirm the city or time zone in the operating system settings.
• Look at the automatic time zone toggle and turn it off and on again if needed.
• Check whether a VPN is active before blaming the calendar.
• Compare with my phone, which usually follows the local network.
• Do a quick check online if I am not sure which zone name applies.

When I need a second opinion, I use whattimezoneiam.com to see what time zone my connection appears to be in. It is not a replacement for fixing the laptop, but it helps me tell the difference between a device setting and a network guess. Now I check the clock before I reschedule anything.

— Chris Walker