1 | initial version |
It's a time, without a date. It's a format used by certain Tektronix protocol analyzers. You shouldn't use it if you don't have to, i e. if you don't have a Tek protocol analyzer, because it's a pretty terrible format. You can't change the header information because then it wouldn't be a K12 file.
https://wiki.wireshark.org/K12 https://gitlab.com/wireshark/wireshark/-/issues/12052
What problem are you trying to solve by exporting to that format?