6 hours (from 1800 to 2359 UTC)
NEW RULES - MORE ROOKIES!
• You can be a Rookie if you were first licensed in 2018, 2017 or 2016 - send the year you were first licensed in the exchange.
• If you were licensed before 2016 you can also be a Rookie if you made your first Amateur Radio contact during 2018, 2017 or 2016 or if you haven't made any contacts on the contest mode (SSB, CW, or RTTY) before the Rookie Roundup contest, send the current year (2018) in your exchange - either of these reasons qualify you as a Rookie for just one year.
• Rookies will attempt to make as many contacts as possible during this 6-hour event. Rookies work everyone - and non-Rookies work only Rookies.
This is a great way to try out contesting in an event designed for newcomers.