Boost C++ Libraries

...one of the most highly regarded and expertly designed C++ library projects in the world. — Herb Sutter and Andrei Alexandrescu, C++ Coding Standards

Type xtime_clock_types

boost::xtime_clock_types —

Specifies the clock type to use when creating an object of type xtime.

enum xtime_clock_types { TIME_UTC };

The only clock type supported by Boost.Thread is TIME_UTC. The epoch for TIME_UTC is 1970-01-01 00:00:00.