back when

earlier early late old preceding previous prior recent

ancient bygone latter over

ages ago ancient history behind one bypast down memory lane erstwhile ex- foregoing gone-by good old days latter-day long-ago olden days once one-time quondam retired sometime time was way back way back when

after current future later on time

modern new

present

ages ago back before from way back from year one gone since since God knows when time was

eons ago in days of yore long ago of old olden days

already earlier heretofore once

erstwhile

a while back aforetime anciently at one time away back back before before now before this down memory lane eons ago erewhile in former times in the olden days in the past lately long ago of old of yore olden days once upon a time radically some time ago time was used to be water under the bridge

currently future presently subsequently

already before earlier formerly late previously

erstwhile

a single time at one time away back back but once bygone heretofore in the old days in the olden days in times gone by in times past long ago old on one occasion once only once upon a time one one time before one time previously only one time quondam sometime this time time was whilom

currently future later presently

already formerly heretofore hitherto long ago once then

antecedently

a while ago ahead ante at one time away back back before beforehand erstwhile fore forward in advance in anticipation in days gone by in the past precedently time was until now

currently future later presently