Actually I can just use my own wristwatch to RNG.
For that Espeon, the delay was 3377.
Target time is 6:21:30, 30 is target seconds
And that means I'll also start my DS time at 6:20:00
3377/60=56.28
56.28+0.2=56.48
90 (my target seconds which is 30 + 60) - 56.48 = 33.51
That means when my stopwatch timer of my watch hits 6:20:33.51, I'll soft-reset right away.
90 seconds (overall target time duration) - approx. 5.4 seconds= approx. 84.6 seconds
84.6 seconds after 6:20:00 is when I'll press A to get to Entralink.
I think that 5.4 seconds is that "Entralink delay" or something.
Hehe :D
Hope you're not confused, but I have my own formula, especially if I'm only to use my digital wristwatch.