Solitare is correct.
Normally we have a number of jets, mainly departing from Oriental climates that arrive post 0600. Also, as with last week, somtimes horrendous delays during the days can cause jets to still be pitching up at silly times of the morning. And if we are in LVP's the night noise quota doesn't apply, so you pitch up and come straight in.
And Jim, some US carriers carry an exemption some mornings as well. Although it can get a little confusing for both pilots ATC who can and who can't land.