In 2016, we can't think of timing an event in a manual way. So we have to make our favorite hardware talk to Wiclax.
This is possible in a very simple way. Wiclax can interface with many systems on the market and the list is not closed.
Below is a quick video to show you how it can be done. It does not show all the possibilities as your timing configuration can be much more complex, with multiple readers/decoders or loops that can be either local or distant, and with multiple passings on some of them, etc... But it does make a short introduction.