Here’s a list of the amount of time between each entrance at the Royal Rumble, compiled by nmt96 on Reddit.
The time was not two minutes, but it usually isn’t the exact time WWE advertises and depends more on the flow of the match and specific spots in the match.
1-2 0:00.0 Big Cass/Chris Jericho
3 1:31:8 Kalisto
4 1:37.5 Mojo Rawley
5 1:34.1 Jack Gallagher
6 2:01.0 Mark Henry
7 1:59.9 Braun Strowman
8 2:22.3 Sami Zayn
9 1:51.8 Big Show
10 2:58.2 Tye Dillinger
11 1:39.5 James Ellsworth
12 1:37.6 Dean Ambrose
13 2:05.4 Baron Corbin
14 2:03.8 Kofi Kingston
15 1:37.2 The Miz
16 2:33.6 Sheamus
17 1:51.2 Big E
18 1:48.6 Rusev
19 1:49.1 Cesaro
20 1:49.9 Xavier Woods
21 1:45.3 Bray Wyatt
22 2:20.2 Apollo Crews
23 1:47.5 Randy Orton
24 1:52.0 Dolph Ziggler
25 1:34.9 Luke Harper
26 2:14.5 Brock Lesnar
27 1:54.7 Enzo Amore
28 1:54.2 Goldberg
29 3:00.0 The Undertaker
30 2:38.8 Roman Reigns