Vacation mode allows players to protect themselves from spies and attacks during periods when they are unable to actively play. However, attacks launched on your base before you turn on vacation mode are still carried out.
Activating vacation mode prevents access to an account for at least 48 hours. It is not possible to cancel this!
To ensure that vacation mode isn’t misused to quickly prevent attacks, it will only begin 12 hours after confirmation. Each player has a total of 42 vacation days a year.