Get Next Business Day
const nextBusinessDay = dayjs('2021-02-01').nextBusinessDay();
console.log(nextBusinessDay); // 2021-02-02Get Last Business Day
const lastBusinessDay = dayjs('2021-02-01').lastBusinessDay();
console.log(nextBusinessDay); // 2021-01-29Get Next Business Time
const nextBusinessTime = dayjs('2021-02-01 18:00:00').nextBusinessTime();
console.log(nextBusinessTime); // 2021-02-02 09:00:00Get Last Business Time
const lastBusinessTime = dayjs('2021-02-01 08:00:00').lastBusinessTime();
console.log(lastBusinessTime); // 2021-01-29 17:00:00