date and ntpclient usage.

This is a discussion on date and ntpclient usage. within the Linux Programming forums, part of the Platform Specific Boards category; Hello friends, Iam using opensource ntpclient to keep update my target board time. My general doubt is if i make ...

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    date and ntpclient usage.

    Hello friends,

    Iam using opensource ntpclient to keep update my target board time.

    My general doubt is if i make change of my target board time using the date command , does it have the same effect which ntpclient utility do.

    I mean do this ntpclient will update any kernal clock ( i donot know it exists or not as such which date command will not do ).

    My scenario is as below i.e i have to add offset to the existing time when current time falls between a specified time interval. What my plan is once ntpclient completes synching with the ntpserver then i just update the time by this offset using "date" command (ofcourse when current time is between required interval).

    Hope iam clear about my requirement here.

    thanks and regards

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    Quote Originally Posted by vlrk View Post
    Hello friends,
    My general doubt is if i make change of my target board time using the date command , does it have the same effect which ntpclient utility do.
    Yes, with most all of the time functions you are updating the system clock. This, however, does NOT update the hardware RTC, only the system's time. To update the hardware RTC, you'll have to use something like hwclock to force the write to that device.

    Andy

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