Guess what…Sitecore launched a trial license with 60 days trial.

https://www.sitecore.net/getting-started/implementation/developing-on-sitecore

Its such a great news for the folks who are either

1. New to Sitecore and want to make their hands dirty on Sitecore Development
2. Freelancers who are currently not on any project
3. Developers who are not allowed to use the Client’s license on personal machine for self study.

Thanks you Sitecore Team, this is really awesome.