a lapse of time or a time lapse (length of time)间隔时间
the lapse of time since the incident该事件之后的一段时间
the time lapse between the crimes两次犯罪活动的间隔时间
(delay)滞后时间
There is usually a time lapse between receipt of new information and its publication.在收到新消息之后, 通常会过一段时间再将其发布。