If you are syncing a google calendar or another type of calendar to your website, you can schedule immediate or daily, weekly or monthly imports.
This can be done by going to Calendar > Import in the Dashboard and clicking on the Scheduled Imports tab.
Then click on a calendar and you'll see the options for Import Type and Schedule.
In between scheduled imports, if you would like to force the import faster, scroll over the calendar and you'll see Run Import appear under the calendar. This will allow you to run the import now regardless of the schedule.