I use a 32 bit linux system, and was a bit annoyed that zdump does not list the zoneinfo tables for years before 1901, due to the limitations of the 32-bit time_t values. The binary zoneinfo tables created by zic are correct, as they contain 64-bit data, it is just that the standard zdump cannot print those. I have patched zdump.c and localtime.c so that it uses 64-bit (via typedef long long time_t64) instead of the default time_t type, and now this patched version of zdump also reports the pre-1901 years correctly. Is there interest to include such a patch in the general distribution of tzcode ? If yes, I would have to rewrite it more cleanly, and would be willing to contribute the patch. Currently, I just made a copy zdump64.c and localtime64.c which with my modifications, but I could create a clean version with a compile-time switch. Maintainer of tzcode, please let me know. Regards Alois