Set applications to push for 7pm rolled out early

Myself and one other SCCM admin set 3 applications to roll out at 7pm. All three rolled out within 15 minutes of being scheduled. We did set it so that the installation could run outside of maintenance window, just so that any systems that come online tomorrow or later would get the push. This is how we have done it every other time and they don't start rolling out until after its scheduled.

Any idea on why they rolled out right away?

regards,

Mike