Time sync problems with Vagrant and VirtualBox

Daily, my guest vagrant’s machine clock (assume you’re using VirtualBox) would go off-sync with its OSX host machine forcing me to run the command:

sudo ntpdate ntp.ubuntu.com

Because I edit code from the host machine on NFS shared folders Rails wouldn’t reload the code in development mode when this sync issue happened.

Want the solution? Edit your vagrant file and add this setting:

vb.customize [ “guestproperty”, “set”, :id, “/VirtualBox/GuestAdd/VBoxService/--timesync-set-threshold”, 10000 ]

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