>when will the system time be written into the CMOS clock? Only if I halt
>or reboot the system?

I don't believe anything is written to CMOS on halt/reboot, except for
platforms where boot instructions are written there (single/multi
users, fsck/don't, etc.).

Time should only be written to CMOS when you explicitly set the clock.

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  Michael L. VanLoon                           michaelv@MindBender.serv.net
      Contract software development for Windows NT, Windows 95 and Unix.
             Windows NT and Unix server development in C++ and C.

        --<  Free your mind and your machine -- NetBSD free un*x  >--
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        Sun4/4c/4m, DEC MIPS, DEC Alpha, PC532, VAX, MVME68k, arm32...
    NetBSD ports in progress: PICA, others...
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