限时

限时	xiàn shí	to set a time limit / for a limited time / time-limited / limited period of time
限	xiàn	to limit / to restrict / (bound form) limit / bound
时	shí	old variant of 时
时	Shí	surname Shi
时	shí	(bound form) time; hour; period; season / (after a numeral) o'clock; hour(s) / (after a verb phrase or clause) when; while