Just for fun and not to be taken too seriously, here is a "Pseudo-Schwartzian" solution:
use strict;
use warnings;
print map { /^(.{19})(.*)$/; "$2$1\n" } sort map { /^(.*)(.{19})$/;
+ "$2$1" } <DATA>;
__DATA__
RRsnap02 2013-07-24 12:35:35
vmk000 2013-07-22 17:16:50
vmk001 2013-07-22 20:00:36
vmk009 2013-07-23 18:21:12
vmk010 2013-07-23 18:31:00
vmk020 2013-07-23 23:30:43
vmk024 2013-07-24 03:27:30
vmk031 2013-07-24 10:27:36
vmk032 2013-07-24 11:27:38
vmk032 2013-07-24 11:27:38
UPDATE: -- for me for not realizing that choroba had posted the same thing above already: Re: sort timestamps with associated names.
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