[uxcolumbo]

I was thinking of this site as well, showing the different time lines and how they offset according to the time difference. Very neat. Just couldn't remember the domain name.

The design is a bit dated as it's not optimized for higher res screens, everything is quite small. I guess people can zoom in.

How do they make money though? I don't see ads or sign up page for extra features. Running this service since 2011, have to pay for hosting fees etc.

[asnyder]

There used to be paid options. They sent a notice a couple years ago saying it was going completely free, but with that support has subsided. For example their mobile app is no longer compatible with latest versions of Android.