back when

During past times

Back when introduces a reference to a past time, often with nostalgic or reflective tone.

It signals that the speaker is about to describe how things used to be, typically in contrast to the present.

Back when I was in college, we didn't have smartphones.

Back when gas was cheap, people drove everywhere.

The phrase emphasizes temporal distance and often implies that circumstances have changed significantly since the period being recalled.

Related

earlier · bygone · days gone by · erstwhile · long ago · throwback · at one time · once · time was · nostalgia · yesteryear · historically · reminiscence · flashback · simpler times · oral history · wistfulness · past

Opposites
temporal reference

back whennowadays

In this era

these days · now · currently · at present · today

Family

back, when, backward, backing, background, comeback, setback, backed, backdrop

Familiarity
Top 50,000
Profile
Known to kids · Used worldwide · Timeless · Abstract · Everyday, not technical · Rated G