The date time object to format.
The formatting scheme to use. Defaults to "MMMM Do, YYYY h:mm A".
It is recommended to use a locale-aware formatter like formatDate instead of this. Only use this function under very special circumstances (generally for fixed format, not for human-readability).
The format used can be found in the day.js documentation, as well as the advanced format strings which don't depend on other plugins, which are documented here.
Returns a date time string formatted according to a specified formatting string.