Toggl - Toggl is an online time tracking tool. It features 1-click time tracking and helps you see where your time goes. Free and paid versions are available.
ReachOut - ReachOut is a field service management suite to streamline field processes with customizable mobile-based forms and workflow.
ManicTime - Track your computer usage and use collected data to accurately tag time.
DeltaSalesApp - Field Sales Force Automation & Field Force Tracking Software
RescueTime - Time management software that shows you how you spend your time & provides tools to help you be more productive.
Service Cloud Field Service - Service Cloud Field Service is a cloud-based field service solution designed to initiate customer service activities from anywhere.