Turn your calendar into invoices
Drop a month of your calendar in. It is read inside this browser — the file never leaves your computer, and nothing on this page is uploaded.
1. Your calendar
Drop your .ics export here, or choose a file.
In Google Calendar: Settings → Import & export → Export. You will get a zip; unzip it and use the .ics inside. In Apple Calendar on a Mac: click the calendar in the sidebar, then File → Export → Export.