Using the time stamp of the passing in combination with the stored value for ref_computer_time and ref_time_stamp we can calculate the true computer time of the passing as follows:
KARLS07;17ca;0151cbf5;26;13;9f;15;0;0;1;00;0
Pseudocode calculating the true computer passing time:
passing_time_epoch = ref_computer_time + ((pass_time_stamp - ref_time_stamp) / 256.0) // passing_time_epoch = 0x4a3caa45 + (0x0151cbf5 - 0x0151bcf5)/256.0// ref_computer_time = 0x4a3caa45 => June 20 2009 11:22:14 UTC+2// pass_time_stamp = 0x0151cbf5 => taken from passing data above// ref_time_stamp = 0x0151bcf5 => given in reply to EPOCHREFSET// => 1245489748 passing_time = epoch_to_datetime(passing_time_epoch) // passing_time => Jun 20 2009, 11:22:29 UTC +2
=> June 20th 2009, 11:22:29 UTC +2