Hi, my favorite suspect in mtools is to see in function mk_entry():
https://sources.debian.org/src/mtools/4.0.33-1+really4.0.32-1/directory.c/?hl=98#L107 now = localtime(&date2); (I see no debian/patches directory for mtools. So this is probably really in effect with Debian's package.) I understand that this function gets the SOURCE_DATE_EPOCH value as time_t date2 = date; but then applies the local timezone when generating the timestamp components. From man localtime: The localtime() function converts the calendar time timep to broken- down time representation, expressed relative to the user's specified timezone. Unix time functions always confused me. So my idea of using gmtime(3) instead of localtime(3) has to be taken with a grain of salt. (Further it might be necessary to use gmtime(3) only when SOURCE_DATE_EPOCH is defined and not in normal operation mode.) Have a nice day :) Thomas
