Q: I work full time, what are the times at which I will find the biggest and most tradable moves?

A: The single most active time of day for forex trading is the overlap
between the London and New York market hours, approximately 7:00am to
12:00pm Eastern Time.

In terms of price movement, though, it all comes down to which currency
is being considered. The major ones will move around the clock as events in
the major centers (London, NY, Tokyo) dictate. The more regional currencies
will primarily trade only during the timeframe their main market is open –
such as the Mexican Peso trading most during the North American market