On which day of the week did the appearance of Jesus take place

The post-resurrection appearances of Jesus took place on the first day of the week, which corresponds to Sunday. Multiple Gospel accounts confirm this:

• Mark 16:9 states that Jesus "rose early on the first day of the week" and appeared first to Mary Magdalene.
• Luke 24:1 records that the women went to the tomb "on the first day of the week" and found it empty, after which Jesus appeared to them.
• John 20:1 and 20:19 record that Mary Magdalene went to the tomb "on the first day of the week," and that evening Jesus appeared to the disciples behind locked doors.

The "first day of the week" in Jewish reckoning was the day after the Sabbath (Saturday), making it Sunday. Jesus was crucified on Friday, lay in the tomb on the Sabbath (Saturday), and rose on Sunday - the first day. This is why early Christians began gathering for worship on Sunday, calling it the Lord's Day (Revelation 1:10).