In light of the upcoming seasonal adjustments to local clocks, I have added a page (linked above) that will show you what time (and day) it is in various parts of the world. (Radio Riel staff live in the United Kingdom, various time zones in the United States, and Australia. It’s not always even the same day!)
These clocks are courtesy of the useful site, World Time Server. FYI, you can also enter “time in wherever” into a Google search field, and it will give you the current time in that location.