Harvest is a time-tracking tool that helps teams track their time, create invoices based on billable hours, and manage projects more effectively. By connecting Harvest to other business-critical tools like Google Calendar and Trello, users can automate workflows using Zapier, which allows them to measure meetings, receive notifications, and create invoices automatically. This integration enables teams to streamline their workflow, gain insights into productivity, and make data-driven decisions. With the help of Zaps, users can track time in spreadsheets, manage projects effectively, streamline invoices, and receive notifications to stay on top of their work, ultimately improving their overall efficiency and productivity.