Verifica se a data atual é útil | Check if the current date is a business day

isBussinessDay.js

// https://momentjs.com/docs/
const isBussinessDay = (timezone = 'America/Araguaina', startHour = 8, endHour = 18) => {
	const now = moment().tz(timezone)
	const day = now.day()
	const hour = now.hour()
  
  // 6 === Satday and 7 === Sunday
	return day !== 6 && day !== 7 && hour >= startHour && hour <= endHour
}

// examples:
isBussinessDay('America/Araguaina', 10, 20)
isBussinessDay('America/Sao_Paulo', 8, 18)