TimezoneFinder.timezone_at can, in some cases, do file I/O, so call it in an executor. Also, there are some indications that importing this integration can take too long, so do that in an executor also by adding "import_executor": true to manifest.json.
TimezoneFinder.timezone_at can, in some cases, do file I/O, so call it in an executor. Also, there are some indications that importing this integration can take too long, so do that in an executor also by adding
"import_executor": trueto manifest.json.Resolves #7.