Did British Empire and Soviet Union (USSR) exist in the same era?

Yes, the two civilizations both existed around 1922 CE.

Which lasted longer, British Empire or Soviet Union (USSR)?

British Empire lasted longer (414 years).

British Empire: Avrupa; Soviet Union (USSR): Avrasya

British Empire (1583 CE – 1997 CE) and Soviet Union (USSR) (1922 CE – 1991 CE) lived in the same era.

	British Empire	Soviet Union (USSR)
Period	1583 CE – 1997 CE	1922 CE – 1991 CE
Duration	414 years	69 years
Region	Avrupa	Avrasya
Capital	Londra	Moskova
Type	Empire	Federation
Government	Anayasal Monarşi	Tek Parti Sosyalist Cumhuriyet
Religion	Hristiyanlık (Anglikan)	Devlet ateizmi
Language	İngilizce	Rusça
Peak population	458,000,000	293,000,000
Rulers	10	8

The empire with the most extensive territory in history. It was referred to as "the empire on which the sun never sets."

The first socialist superpower in history. The rival of the United States during the Cold War. It initiated the space race.

Did British Empire and Soviet Union (USSR) exist in the same era?: Yes, the two civilizations both existed around 1922 CE.
Which lasted longer, British Empire or Soviet Union (USSR)?: British Empire lasted longer (414 years).
Which regions did British Empire and Soviet Union (USSR) rule?: British Empire: Avrupa; Soviet Union (USSR): Avrasya