time.mktime problem

[McBooCzech]

according to the Python documentation:
http://docs.python.org/lib/module-time.html

===snip===
Values 100-1899 are always illegal.
.
.
strptime(string[, format])
.
.
The default values used to fill in any missing data are:
(1900, 1, 1, 0, 0, 0, 0, 1, -1)
===snip===

BTW, check the following code:
>>import datetime, time
>>print time.gmtime(time.mktime((1900, 1, 1, 0, 0, 0, 0, 1, -1)))
(1901, 12, 13, 20, 45, 52, 4, 347, 0)

but (1900, 1, 1, 0, 0, 0, 0, 1, -1) is (IMHO) expected.... Hmmm. But I
am just a newbie!!! :)

Anyway, maybe I am just using a wrong way how to calculate time delta
between two time values given in the format "HHMMSS".

Does Python provide some other ways how to calculate it?

Petr Jakes