OptionaldateDate preset breadth, or "disabled" to omit the date entirely;
defaults to "short".
OptionaltimeTime preset breadth, or "disabled" to omit the time entirely;
defaults to "medium".
OptionaltimeAn IANA time zone name (e.g. "America/New_York"); defaults to the
browser's local time zone.
A datetime column's
date_formatin itsSimplepreset form:Intl.DateTimeFormatOptions'dateStyle/timeStylepresets. This is the default form (noformatkey); settingformat: "custom"selects the per-partCustomDatetimeStyleConfiginstead.