[Tistron]

I've looked around for something like this also, and I found https://lettucemeet.com which I often use for this.

It doesn't require signing in, and it allows adding what times you are available.

It's a bit unintuitive in where the buttons are placed so some people sometimes struggle to figure out how to add their availability, but generally I like it.

[wonger_]

I've used these alternatives:

http://whenisgood.net/Create

https://schej.it

No accounts necessary, and they handle timezones too

[WaffleIronMaker]

That's great! It has a similar selection UI to https://www.when2meet.com/, but has much better mobile support. It'd be nice to have a mode for scheduling weekdays in the abstract (e.g. I'm free on Thursdays at noon), but it's always possible to use a random week as an example.

[ako]

Date picker (https://datumprikker.nl/, dutch focus but has english as an option) seems similar. Any significant differences between these tools?