js toLocaleDateString options values
[[Weekday]] "weekday" "narrow", "short", "long"
[[Era]] "era" "narrow", "short", "long"
[[Year]] "year" "2-digit", "numeric"
[[Month]] "month" "2-digit", "numeric", "narrow", "short", "long"
[[Day]] "day" "2-digit", "numeric"
[[Hour]] "hour" "2-digit", "numeric"
[[Minute]] "minute" "2-digit", "numeric"
[[Second]] "second" "2-digit", "numeric"
[[TimeZoneName]] "timeZoneName" "short", "long"
/*
https://medium.com/swlh/use-tolocaledatestring-to-format-javascript-dates-2959108ea020
https://tc39.es/ecma402/#sec-datetimeformat-abstracts
*/