TABLE 5: Session Groups' Start and End Times, Ignoring 5-Minute Spaces
Username Starttime Endtime
User1 2001-12-01 08:00:00 2001-12-01 09:30:00
User1 2001-12-01 10:00:00 2001-12-01 12:30:00
User2 2001-12-01 08:00:00 2001-12-01 10:30:00
User2 2001-12-01 11:00:00 2001-12-01 12:30:00
User3 2001-12-01 08:00:00 2001-12-01 09:00:00
User3 2001-12-01 09:30:00 2001-12-01 09:30:00