Date: 2017feb24 OS: Windows 8.x Q. How can I make Windows update the time more frequently? A. The Short Answer: Use RegEdit to decrease the MaxPollInternval

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\W32Time\Config MaxPollInterval = 15 (default)

Longer Answer: It will check at most 2 ^ MaxPollInterval seconds. So if you want it to check more frequently decrease the number. I made a handy table for you:

MaxPollInterval Seconds 15 32768 14 16384 13 8192 12 4096 11 2048 10 1024 9 512 8 256 7 128 6 64 (Don't go this low) 5 32 4 16

I tested this on a Windows 8.1 box. This info its mostly from here. I simplified it. And its from 2008 so I checked it. http://solutionslog.blogspot.ca/2008/12/how-often-does-windows-ntp-correct.html