Tokei.link offers a simple time tracking API that can be used to return a PNG image analog clock representation of the current time. Tokei is Japanese for 'watch.' HTTP GET requests can be made to retrieve these PNG images. Users can specify their local time zones as well as their travel destination time zones in order to receive images that can be used for side-by-side comparison. The API is free to use, and no authentication is required for use. Tokei.link also offers an integration for the messaging app Slack.