ago, before, lately, later (on), now, recently, then, today, tomorrow, tonight, yesterday
in a flash(瞬时), in a lucky hour(在幸运时刻), in an evil hour(在不幸的时刻), in a minute, in a second, in a short time, in a while, in advance(预先), in an instant, in broad day(在大白天), in due course(及时地), in future, in good season(及时地), in no time(马上), in one’s childhood, in one’s spare time, in one’s teens, in one’s youth, in re-cent years, in some cases(有时候), in spring, in the beginning, in the daytime, in the end, in the long run(最后), in the meantime, in the morning, in the past, in this period, in those days, in time
at a time(在某时), at a wedding(婚礼), at all times(一直), at any moment, at Christmas, at dark (天黑时), at dawn(在黎明), at daybreak, at dinner-time, at dusk(在黄昏), at first sight, at first, at last, at night, at nightfall, at noon, at present, at six o’clock, at sunrise, at sunset, at that moment, at that time, at the age of, at the beginning of , at the end of, at the last minute, at the moment, at the same time, at the stage(眼下), at the start, at this point(此时), at this sea-son, at times(有时)
参考资料：新浪博客