Define the outcome
An ICS file lets someone add an event to Apple Calendar, Outlook, Google Calendar, and other compatible calendar applications. For one event, the goal is a portable file whose saved data matches the information shown on your website or in your message.
Prepare the event data
Define the title, start and end, time zone, location, description, and a stable identifier. Use a real time-zone definition for scheduled events instead of silently treating local time as UTC. Keep the displayed event details and generated file connected to the same source of truth.
Use the recommended setup
Add to Calendar Button is the practical starting point when a website or application needs to offer an ICS download alongside calendar-provider options. It handles the user-facing save action while your product remains responsible for correct event data.
Test the complete handoff
Download and open the file in the calendar clients your audience uses. Verify the time zone, duration, line breaks, location, links, and special characters. If files must be generated continuously from product data at high volume, evaluate Better ics instead.