That & seems to indicate something, let’s split the string there
30.05.4754.09.42.34.848
09.06.3506.21.09.26.974
Those two string are date and time
DD.MM.YYYY.HH.MM.SS
30.05.4754.09.42.34.848
DD.MM.YYYY.HH.MM.SS
09.06.3506.21.09.26.974
For now remove the extra numbers (848 & 974) at the end of both string. Convert the strings from normal time to Unix timestamp
87867452554
48485250566
Reinsert the extra numbers (848 & 974) at the end of both string.
87867452554848
48485250566974
Join both string and make pairs
87 86 74 52 55 48 48 48 48 52 50 56 69 74
Convert decimal to Ascii
WVJ470000428EJ
We used time to get the code, substitue 0000 for timezero
wvj47timezero428ej