2040 for most of the world, 2070 for the Antarctic.

1987 CFCs were banned by an international treaty. This could be done so easily because substitutes for CFCs were available (unlike CO2, the other thing people are focused on for the climate).

Anecdote. In 2018 scientists detected a rise in CFCs, and they were traced to factories in China. Soon after, CFCs resumed their downward trend.