Ghetto Cooldown Function [C#]

BUTTONTHATSTARTSATTACKHERE.Text = ("Cooldown Started 30s");
BUTTONTHATCLOSESAPP.Enabled = false;
timer1.Interval = 30000; // Currently set to 30 seconds
timer2.Start();

// Inside the timer
BUTTONTHATSTARTSATTACKHERE.Text = ("Start");
BUTTONTHATCLOSESAPP.Enabled = true;