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ChronyControl provides a straightforward means fo installing and monitoring chrony, which has now been ported to OS X. The standard installation of OS X includes ntpd, probably the most widely used software for keeping a computer clock synchronised with other computers/clocks on the Internet. However, unless the Mac is online for extended periods of time, ntpd can be very slow to synchronise with other clocks, and the system time can be at wild variance with true time. The chrony software addresses the issues associated with ntpd. This is fully explained in the More...

What's New

Version 1.2.1:

Note: Now requires OS X 10.10 or later

  • Fixed crash-on-start under OS X 10.11 El Capitan
  • Updated embedded chrony to version 3.2
  • Updated to Swift 4
  • Updated for macOS 10.13 High Sierra


  • OS X 10.10 or later

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ChronyControl User Discussion

5 2


Current Version (1.x)


Downloads 660
Version Downloads 127
License Free
Date 15 Sep 2017
Platform Intel 64 / OS X
Price Free
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