fixing bugs in update_hours_to_floats re 12173
fixing bugs in update_hours_to_floats re 12173

AccelerationNet/trac-timingandestimationplugin,AccelerationNet/trac-timingandestimationplugin,AccelerationNet/trac-timingandestimationplugin,AccelerationNet/trac-timingandestimationplugin,AccelerationNet/trac-timingandestimationplugin