The time value as returned by gmtime(), localtime(), and strptime(), and
accepted by asctime(), mktime() and strftime(). May be considered as a
sequence of 9 integers.
Note that several fields' values are not the same as those defined by
the C language standard for struct tm. For example, the value of the
field tm_year is the actual year, not year - 1900. See individual
fields' descriptions for details.