import React, { useState } from "react"; import { useStyletron } from "baseui"; import { FormControl } from "baseui/form-control"; import { DatePicker } from "baseui/datepicker"; import { TimezonePicker } from "baseui/timezonepicker"; import { TimePicker } from "baseui/timepicker"; const DATE = new Date(2019, 3, 1, 12, 0, 0); export default function Example() { const [css, theme] = useStyletron(); const [date, setDate] = useState(DATE); const [zone, setZone] = useState(null); return (