Using UTCTime with SQLite in Yesod
You stored a Text value "09:18:07", while it expected a UTCTime value. Did you insert values by hand?
getCurrentTime from Data.Time returns a value of type IO UTCTime, so you can either use putStr getCurrentTime in GHCI to get a valid representation, or use now <- liftIO getCurrentTime in your function.
EDIT:Because getCurrentTime returns a timestamp like: 2013-10-25 10:16:32.1627238 UTC, inserting a value like that in your database should resolve the error.