Convert seconds to HH:MM:SS

timerFormatter.ts

const timerFormatter = (secs: number): string => {
	const secondsInDay = 60 * 60 * 24
	const secondsInHour = 60 * 60
	const secondsInMinute = 60
	const hoursInDay = 24

	const days = Math.floor(secs / secondsInDay)
	const hours = Math.floor((secs / secondsInHour) % hoursInDay).toString().padStart(2, 0)
	const minutes = Math.floor((secs / secondsInMinute) % secondsInMinute).toString().padStart(2, 0)
	const seconds = (secs % secondsInMinute).toString().padStart(2, 0)
	let formatedDays = ''

	if (days > 0) {
		const plural = days === 1 ? '' : 's'
		formatedDays = `${days} day${plural} `
	}

	return `${formatedDays}${hours}:${minutes}:${seconds}`
}