Rachota had been updated to version 2.4 (2014/08/24).
http://sourceforge.net/projects/rachota/files/Rachota%202.4/Rachota%202.4/rachota_24.jar/download
It run with the command "java -jar rachota_24.jar"
"Rachota is a portable application for timetracking different projects. It displays time data in diagram form, creates customized reports or invoices and provides suggestions to increase your effeciency."

This is a Java application so OpenJDK is required.
Project URL: http://sourceforge.net/projects/rachota