Holy Spirit at Pentecost Strengthen's us: Like confirmation strengthens Baptism (Jn 20:19-23)

In Acts Luke tells of the Holy Spirit coming 50 days after the Resurrection, in John it is on the same day of the Resurrection. Which is it?  The two can be likened to the relationship between our Baptism and our Confirmation. Confirmation means to strengthen. The One Spirit manifests itself differently in each, yet unites us as one. I offer a prayer I am sure God will answer; "Lord what do you want me to do? Send the Holy Spirit to strengthen me to do it." Amen.