Index: libs/chrono/doc/chrono.qbk =================================================================== --- libs/chrono/doc/chrono.qbk (revision 83712) +++ libs/chrono/doc/chrono.qbk (working copy) @@ -3804,7 +3804,7 @@ [section:system_clock Class `system_clock`] -The __system_clock class provides a means of obtaining the current wall-clock time from the system-wide real-time clock. The current time can be obtained by calling `system_clock::now()`. Instances of `system_clock::time_point` can be converted to and from time_t with the `system_clock::to_time_t()` and `system_clock::to_time_point()` functions. If system clock is not steady, a subsequent call to `system_clock::now()` may return an earlier time than a previous call (e.g. if the operating system clock is manually adjusted, or synchronized with an external clock). +The __system_clock class provides a means of obtaining the current wall-clock time from the system-wide real-time clock. The current time can be obtained by calling `system_clock::now()`. Instances of `system_clock::time_point` can be converted to and from time_t with the `system_clock::to_time_t()` and `system_clock::from_time_t()` functions. If system clock is not steady, a subsequent call to `system_clock::now()` may return an earlier time than a previous call (e.g. if the operating system clock is manually adjusted, or synchronized with an external clock). The current implementation of __system_clock is related an epoch (midnight UTC of January 1, 1970), but this is not in the contract. You need to use the static function static