@glorifiedg you’ll be glad to know you have already done the hard part, it is all downhill from here.
Take a look at this thread (it relates to the Photon) Blynk with Spark Photon - Dual output control with single botton and they use different timers to Arduinos but it will give you the basics.
Where you see reference to CapTimer you need to substitute the equivalent SimpleTimer code instead.
SimpleTimer example is available at https://github.com/blynkkk/blynk-library/blob/master/examples/GettingStarted/PushData/PushData.ino#L30 where 1000L = 1000 milliseconds / 1 second so 60000L is 1 minute.
This thread might also be useful for you [SOLVED] Turn on and off relay with blynk button and/or physical button