I've been using Dimension 4 v.5.31 with Windows 10 for several years now and have no issues at whatsoever. It comes up as soon as the SSD on my Dell Inspiron N7010 17R laptop boots up and syncs as soon as the internet connects and then it resyncs every 30 minutes, (you can set how often it resyncs with the time server of your choosing in the program's settings). I have mine set to sync with time-b.nist.gov which is US MD: NIST Central Computer in Gaithersburg, MD. I chose it due to it's proximity to my location in NC and it works great!
