used to indicate a period of time when an action or event takes place

在, 随着
used to specify the intended or scheduled time for an event, activity, or arrangement

用于表示事件、活动或安排的预定时间的介词,例如:“会议定于下午2点举行。”, 用于指定一个事件的时间,比如:“会议定于下午2点。”
expressing the exact time when something happens

在, 于
used to indicate the deadline or point in time at or before which an action or event is expected to occur or be completed

到, 在
used to indicate the arrival or occurrence of a particular time, event, or situation

至周一, 到周一
used to indicate the timeframe within which an action, event, or process occurs

在, 以
used to indicate that something has happened or existed throughout a long period of time

沿袭, 传承
used to state how long it will be until something happens
used to indicate that someone or something is waiting for or dependent on another event, decision, or action

待, 尚待
used to indicate proximity in time

接近, 临近
used to indicate a specific point in time or a reference point from which information or a situation is being considered

截至目前, 至今
referring to the period or duration during which something happens, develops, or takes place

在……期间, 在……过程中
during a particular period or while something is happening

在...之中, 在...期间
during a particular situation or condition

在...之中, 在...期间
