nanowat·ch has been shut down as of March 19, 2019.
If you were using the nanowat·ch representative, feel free to keep using it. It will not be shut down in the foreseeable future. The representative node is currently checking....
The website has collected block timestamps since January 21, 2018 — as well as block count statistics since January 29, 2018.
If you are interested in the dump containing these timestamps, drop me an email. The dump is too large to provide as a public download through this website.