Hey all, running into a bit of funkiness on a VM I've popped up. There's an increasing time drift between the date and hwclock. hwclock is always right, but date keeps falling farther and farther behind. I tried setting up a cron job to run ntpdate every half hour, but because it's so slow, a few hours go by, and it's so far out of sync that it fails. Short of having it query the ntppool servers every minute (that'd go well, I'm sure), I'm wondering if I'm missing something else. I also tried nuking adjtime and recreating it, but no dice. This is the second time this has happened with this VM, the first iteration I took down because of this problem thinking it was a configuration error on my part.

The machine that the VM is running on is up to date, the time is correct, and virtualbox is also up to date.

Any ideas or suggestions?

Edit: Installed and configured chrony since ntp and ntpdate were deprecated, but it still seems to be falling behind.

ntpdate is deprecated but not ntp. The functionality of ntpdate was added to ntp.

Did you install guest additions? It improves time sync between the guest and host.

https://www.virtualbox.org/manual/ch...changetimesync

Yeah, installing guest additions worked. Thanks amigo.

In case anyone else needs a fast guide for Centos 7:

Use the following procedure to resolve the issues.
Mount the VBoxGuestAdditions_5.0.16.iso for the VM.

Good.

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