On distributed systems broadly defined and other curiosities. The opinions on this site are my own. Here I will write about our recent work on Hybrid Logical Clocks, which provides a feasible alternative to Google's TrueTime. A brief history of time (in distributed systems) Logical Clocks (LC) was proposed in 1978 by Lamport for ordering events in an asynchronous distributed system. LC has several
![Hybrid Logical Clocks](https://cdn-ak-scissors.b.st-hatena.com/image/square/5326209d053afbb6405cc01f55e78e24217700ea/height=288;version=1;width=512/http%3A%2F%2F3.bp.blogspot.com%2F-yDsoBXGXodQ%2FU9TxYmENEUI%2FAAAAAAAABqo%2FgJ7ogtXp0_M%2Fw1200-h630-p-k-no-nu%2FScreen%2BShot%2B2014-07-27%2Bat%2B3.32.10%2BPM.png)