Although Central European Time (https://cet.httpclock.com) will be valid too, as well as a few other time zones (for maximum coverage it uses 12 hour time format)
And yes I understand an empty response the majority of the time is perhaps a little confusing, and from the logs it looks as if most visitors are receiving such a response, so while I wished to keep it as "pure" as possible I probably should add a simple "about" page.
(edit) As it's now 4pm UTC I'd recommend https://utc.httpclock.com
Although Central European Time (https://cet.httpclock.com) will be valid too, as well as a few other time zones (for maximum coverage it uses 12 hour time format)
And yes I understand an empty response the majority of the time is perhaps a little confusing, and from the logs it looks as if most visitors are receiving such a response, so while I wished to keep it as "pure" as possible I probably should add a simple "about" page.