fixing times bug

Signed-off-by: Jefferson Xavier <jeffersonx.xavier@gmail.com>
Signed-off-by: Rodrigo Gonçalves <rodrigosg2000@hotmail.com>
Signed-off-by: Winstein Martinsn <sriwinstein@gmail.com>
Merge pull request #9 from rodrigo14/devel

Fixing start-end time bug
Tests for start-end time