This integration lets you track time from a task in ticketeer directly to Harvest. The time will be added to the project you select when you set up the integration along with a note containing the task name.
To set up the integration - go into a board, hover the board menu (first option) in the top right menu and select "integrations". From this dialogue, find the Harvest integration and click "Settings".
The first time you set this up you will need to authorize and link your Harvest account to ticketeer. Once that's done - simply choose what account, project and task the time from this particular board should be reported to in Harvest, save your changes and you're good to go.
Note that time is only added and/or removed when altering the timers in ticketeer. Time altered in Harvest does not sync back to ticketeer.