Hi Bruno, with a SwitchBot Hub Mini you can (see link) create a timer it looks like. Found another link that talks about a beta firmware of the switch but I don't recommend it. Alone without doing anything the SwitchBot switch itself can't do a timer as far as I know that's why the hub I think.
Rocksresort Laax: win a stay for 4 people
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We're giving away a voucher for Rocksresort Laax: 2 nights in a family flat for 4 people.