Timestamp of files in pyILPER filled with 00; issue?

Hello,
I was creating a new virtual drive with pyilper (since previous files seems weird).
Now I dont see "Date" and "Time" in the column; only "00". See attachment.
pyILPER version is 1.8.3 and lifutils is 1.7.10
Is this usual?
So far, the file can be accessed via hp41/pilbox to the Debian11 64bits PC; it means it must not have a stamp time; only the versioning-monitoring (if the timestamp would help for this) has to be done in another way.
I was creating a new virtual drive with pyilper (since previous files seems weird).
Now I dont see "Date" and "Time" in the column; only "00". See attachment.
pyILPER version is 1.8.3 and lifutils is 1.7.10
Is this usual?
So far, the file can be accessed via hp41/pilbox to the Debian11 64bits PC; it means it must not have a stamp time; only the versioning-monitoring (if the timestamp would help for this) has to be done in another way.