Send the request at least 10 days before your requested dates.
As for the earliest, we recommend 2 months in advance.
There may be hosts who respond even if your requested dates are earlier than 2 months but the rate may be lower as many hosts will not know what their schedule is months ahead.
Nevertheless for the best response rate, it is best to include as many dates and times as possible and include weekend dates as many of our hosts work during the week.
If you are hoping to get a response from families with kids, we recommend including saturday lunch in your list of dates and times.