Don't worry, it isn't all part of a plot to come round and beat you up if you don't get things finished quickly enough. tedium now has support for timezones so it doesn't assume that you're living in the UK.
So if you live in the US, or Australia (or anywhere else for that matter) your "today" view should show what you'd expect all of the day, rather than just the part of the day that overlaps with today in the UK.
You can set your timezone on the all-new "My Settings" page, where you can also update your email address, or change your password.