The new "Clock" block is now one of my favorite blocks! I've been waiting for something like it for over a year. The reason for this is you can now tell how long someone has been offline.
I've created an interesting example of how to implement this: http://flowlab.io/game/view/1294476
The calendar block right above it is also cool because you could create something that changes on a certain date. For example, you could put a sale on things for black Friday automatically. Or you could schedule an event for all users. I'm looking forward to using this in a simple idle game. Once I make that I'll post it in the "Play My Game" category. In the meantime, I'd love to see a game use this feature. I'm gonna @ some flow lab users I would love to see a game using this feature from. @Latif @CrimsonBlackGames