What do you call the Saturday between Good Friday and Easter/Resurrection Sunday?

Every year we hear about "Maundy Thursday" (the day Jesus was betrayer, celebrated with sadness), "Good Friday" (the day Jesus was crucified, and we were redeemed), and "Easter" or "Resurrection Sunday" (the day Jesus rose from the grave). But what do you call the Saturday in the middle of all of that? Turns out there is an answer.

Holy Saturday: the Jewish Sabbath
Jesus rested in the tomb on the Sabbath. According to Matthew 28:1, Mark 16:1-3, and Luke 23:56-24:3, the day before the Resurrection was a Sabbath. This is the second day that Jesus lay in the tomb.

It is interesting to think that even in Jesus's death, God observed the Sabbath as a day of rest, where no visible action was taken.