古往今来[kooukonrai] in all ages
古今[kokon] ancient and modern times
古今東西[kokontouzai] all times and places
古今無類[kokonmurui] best ever

今か今か[imakaimaka] eagerly waiting
今が今[imagaima] just now
今が今まで[imagaimamade] till just now
今しがた[imashigata] moment ago

此の頃[konokoro] recently
一頃[hitokoro] once
何時頃[itsugoro] about when
近頃[chikagoro] lately
月頃[tsukigoro] these past months

見頃[migoro] best time to see
頃合い[koroai] suitable time
頃刻[keikoku] short period
今頃[imagoro] about this time
使い頃[tsukaigoro] handy