Wait for Time Matters 12 Service Pack 1
Due to a variety of reported issues with Time Matters 12, we recommend waiting to upgrade until after the release of Time Matters 12 Service Pack 1.
A significant number of users have encountered problems in converting from Time Matters 11.1 and earlier to Time Matters 12. Some features that were working in Time Matters 11.1 do not work in Time Matters 12.
We will update this post with more information about Time Matters 12.0 and Service Pack 1, which is expected in first quarter, 2013.