google calendar連結

 https://calendar.google.com/calendar/render?action=TEMPLATE&text=Birthday&dates=20180201T090000/20180201T180000&sprop=&sprop=name:

text=主題

dates=起時間/終時間

https://calendar.google.com/calendar/render?action=TEMPLATE&text=Example+Google+Calendar+Event&details=More+help+see:+https://support.google.com/calendar/thread/81344786&dates=20201231T160000/20201231T170000&recur=RRULE:FREQ%3DWEEKLY;UNTIL%3D20210603&ctz=America/Toronto

https://github.com/InteractionDesignFoundation/add-event-to-calendar-docs/blob/main/services/google.md