The msd-datetime-mechanism is used for setting the system time via D-Bus. msd-datetime-mechanism is a D-Bus wrapper that gets executed via D-Bus with root privileges. The execution of msd-datetime-mechanism gets triggered via the MATE clock applet.
This manual page has been written by Vangelis Mouhtsis <firstname.lastname@example.org> and Mike Gabriel <email@example.com>. It has been originally written for the Debian project (but may be used by others).