Apple’s Macbook is a perfect laptop for computer enthusiasts. Why? Simply, by using dual or tri boot a single laptop can run all the most relevant modern operating systems – Windows, OS X, and Linux. Power on the laptop and choose which OS to load. Configuring this type of setup though is not the intent of today’s tip.

Instead, if you’ve already got a similar situation you’ve no doubt noticed a highly annoying problem. When booting into Windows, for example, you will find your clock is wildly offset and plain wrong. This is because of the way Windows and OS X read the internal clock. Windows uses the local timezone while Apple references GMT.

As a result, booting in and out of Windows or OS X results in a time shift of 8 hours in my case and a constant adjustment within each operating system after a fresh boot. Thankfully, you can instruct Windows to also base time off GMT and thus keep the time consistent and in sync across both operating systems.

From the Start->Search locate the Windows Registry Editor by searching for regedit.

Navigate to HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\TimeZoneInformation

Right-click on TimeZoneInformation and create a New->DWORD (32-bit) Value named RealTimeIsUniversal

Double-click on the newly created DWORD and assign it a value of 1.