The "interfacing to C" header of this page talks about it:
http://dlang.org/intro-to-datetime.html import std.datetime; import core.stdc.time; void main() { time_t unixTime = core.stdc.time.time(null); auto stdTime = unixTimeToStdTime(unixTime); auto st = SysTime(stdTime); }I wish std.datetime made this a bit easier but that's how to do it.