whenever, before, after, while, because, unless, then, untiled, since, everytime, more...

never, timeless, always, nevermore, eternity

morning, afternoon, evening, night, midnight, dawn, dusk, more...

by the time,   at which point,   if i,   if the,   at the time that,   if ever,   at what point,   at what time,   says "when",   on the occasion