Fixing Time with OS-X / Windows & Linux

If you dual-boot Windows and Mac OS X on your Hackintosh, you’ll notice that the Windows clock is always completely proper sync do the following

1. First Open Registry Editor by typing regedit.exe  in Windows 7/Vista Search Bar.
2. Now Navigate to this key , to do so simply keep on double clicking the folders till you come across to this


Fixing Time with OS-X / Windows & Linux

   Windows Registry Editor Screen of TimeZoneInformation If you are not sure , please click on the picture so that you can have a larger view of it.

3. Right click on the empty space right below  ‘TimeZoneKeyName’ and create a new Dword (32-bit). On  32-bit versions of Windows 7/Vista , you will only see D-

4. Rename the new DWORD as “RealTimeIsUniversal” (without quotes and its case-sensitive) .

5. Double click on the new DWORD and change its value data  “0″ (thats a zero) to “1″ (one) Its in hexadecimal
6.Save it all. Reboot to MacOS X , set the time properly and now boot back to Windows.
You should notice the time should be Same

  • Hi, first thanks you for your guide. I’ve been coltlepemy captured by your detailed instructions and advices. I must say that I’ve been a mac user for a long time (I’m not a youngster sigh) and I’ve a lot of Macs around (home & office). But I think there’s no reason to pay thousands of bucks (euros here, about 3.800,00) to get a Power Mac any more now. So I came here, read your pages and went into the shop. Now I’m waiting my new machine like a kid at Xmas (he he). Hope I’ll succeed in making things work. This is what I’ll get:GIGABYTEMotherboard GA-Z68X-UD3H-B3 socket LGA 1155 chipset Intel Z68 ATXCOOLERMASTERCase Cosmos 1000 Big Tower Nero Silver ATXCORSAIRDimm Vengeance Blue 16 Gb (4 4 Gb) ddr3 1600 MHz Unbuffered CL9 1,5 VINTEL Core i5-2500 (Sandy Bridge) Quad-Core 3,30 Ghz GPU integrata HD 2000 socket LGA 1155SAPPHIRERadeon HD 6850 1 Gb ddr5 Pci-E Dual Link DVI-I Single Link DVI-D HDMI Display PortWESTERN DIGITALCaviar Blue 500 Gb Sata 600 Buffer 16 Mb 7200 rpm x 2LG DVD 24x Sata Double Layer M-Disc Black BulkBENQ RL2450HT Monitor 24 LED Full HD 2ms 1920 1080 DVI HDMII’ll tell you what I’ll do and maybe bother you for some help in case it happens I’m not so smart (very easy).Thanks again