With test IO's global crowd presence, you should feel confident launching tests throughout your work day. While there are some lower periods of tester activity - middle of the night European time, for example - please launch tests whenever needed. 

Note: While tester coverage is strongly monitored by our Community Management team, we value the quality of quantity. Please contact your Customer Success Manager should you observe lower participation, as this may be related to special requirements, a specific test type, test duration, etc.