A dozenal (duodecimal, or base-twelve) clock and
homescreen/lockscreen widget. Uses "X" for "ten" and "E"
for "eleven." The app itself is full-screen and keeps time
in four-digit Tims (that's 1x10^-4 hours), with the Tims
separated from the whole hours by a semicolon (";"). The
widget keeps time in two-digit Tims (that is, the two
largest Tims), with the Tims separated from the whole hours
by a semicolon (";"). The widget also display the date.
The app updates automatically when open; the widget, in
order to preserve battery life, updates only when the time
is tapped by the user.