<s>
Earth	B-Application
Clock	I-Application
is	O
a	O
computer	B-Application
program	I-Application
that	O
will	O
display	O
a	O
map	O
of	O
the	O
Earth	O
showing	O
the	O
zones	O
where	O
is	O
day	O
and	O
where	O
is	O
night	O
.	O
</s>
<s>
Its	O
source	O
code	O
can	O
be	O
found	O
at	O
SourceForge	B-Application
.	O
</s>
