Via its G Suite blog, Google announced the official arrival of Dark Mode for Google Calendar and Google Keep.
I don’t think I need to explain what Dark Mode is, but in case you don’t know, it will darken the UI of these apps when enabled. This makes for easier viewing when in low-light conditions.
To enable on Google Calendar, you’ll go Settings > General > Theme. In Google Keep, you’ll go Settings > Enable Dark Mode.
Google states that most Calendar users should see Dark Mode within 15 days from May 16, and for Google Keep, users should have it within 15 days from May 20.