1) Jesus' first advent,
the fullness of time, fulfilled the prophecy of Daniel
9:20-27.
See also Galatians 4:4.
2) Jesus' first advent,
the fullness of time, summed up God's spiritual plan
in
heaven (the Angelic Rebellion) and earth (human salvation). See
Ephesians
1:10; 3:8-10; Titus 1:3; Romans 5:6.
3) Jesus' first advent,
the fullness of time, provided redemption between
man
and God. See 1 Timothy 2:5-6.
4) Jesus' second advent
will be at "the proper time" (1 Timothy 6:15)
which
only the Father knows (Mark 13:32 and Acts 1:7).