Accurate time synchronization in AWS is easy to achieve for those who want it. New financial regulations (MiFID II and FINRA changes) require 1 millisecond and sometimes 100 microsecond accuracy to UTC time. Many social media, gaming and other applications require similar accurate timing. In the past that was not easy since AWS is a virtualized environment where system time does not always match “real time”. Getting past that is pretty easy now, though. Below we show that using the TimeKeeper software on an AWS system using a RHEL AMI demonstrates very clearly that with the proper setup those time accuracy milestones are easy to achieve.