How do you make it night on wolfquest

With 2.5.1 came the introduction of time and weather. To change the time, press 'Z' and select a time; your wolf will sleep until the specified time of day.
Previously, only the cattle ranch used a night-time skybox and was referred to as 'the night mission'. It's not possible to modify time within the cattle ranch by sleeping, as the feature is disabled while in the vicinity.