put the clock back
verb1
Idiomatic To change the time in a time zone to an earlier time, e.g. for the end of daylight saving time.
- Don't forget that this Sunday we put the clocks back an hour.
2
Idiomatic To put something back to the state it was in a previous era.
- He wants to turn the clock back to the 1950s.
- Related terms
- put the clock forward