hwclock.8 (741B)
1 .Dd February 2, 2015 2 .Dt HWCLOCK 8 3 .Os ubase 4 .Sh NAME 5 .Nm hwclock 6 .Nd query or set the hardware clock 7 .Sh SYNOPSIS 8 .Nm 9 .Op Fl r | Fl s | Fl w 10 .Op Fl u 11 .Op Ar dev 12 .Sh DESCRIPTION 13 .Nm 14 is a tool for accessing the hardware clock. You can display the current time, 15 set the hardware clock from the System Time, or set the System Time from the 16 hardware clock. It currently only works with UTC. You can use 17 .Ar dev 18 to specify the RTC device node absolute path. By default 19 it will use 20 .Pa /dev/rtc . 21 .Sh OPTIONS 22 .Bl -tag -width Ds 23 .It Fl r 24 Read the hardware clock and print the time on stdout. 25 .It Fl s 26 Set the system time from the hardware clock. 27 .It Fl u 28 Use UTC. This is the default option. 29 .It Fl w 30 Set the hardware clock to the system time. 31 .El