When ever I check certain emails and I get redirected to their website I receive a click error message telling me my page can't be displayed because my clock is incorrect it's a Mac pro xeon 64 bit workstation and I can't get it to update
Earlier Mac models
Any machine older than 4 years old may have a capacitor or battery that controls the CMOS/PRAM that has basically lost the information of the computer time.
When you connect the computer to the internet, Apple menu -> System Preferences -> Date and Time will link to a time server that corrects the issue.
If you have new software installation that is not progressing it may be due to the fact the security certificates are out of sync with the time necessary. For an older Mac Pro you may need to consider manually setting the time to:
September 24, 2018 for Mojave release date, if updating High Sierra.
September 30, 2015 El Capitan release date if updating Yosemite or earlier.
Apple's OS update cycle was as follows
Snow Leopard August 28, 2009
Lion July 22, 2011
Mountain Lion - El Capitan compatibility all exist on the same computer.
Sierra and and High Sierra compatibility are the same for slightly newer computers.
Xeon Mac Pros typically were released prior to 2013 unless you have the
Mac Pro, which was current until 2019.
If you have a 2019 or later Mac Pro let us know.
Any machine older than 4 years old may have a capacitor or battery that controls the CMOS/PRAM that has basically lost the information of the computer time.
When you connect the computer to the internet, Apple menu -> System Preferences -> Date and Time will link to a time server that corrects the issue.
If you have new software installation that is not progressing it may be due to the fact the security certificates are out of sync with the time necessary. For an older Mac Pro you may need to consider manually setting the time to:
September 24, 2018 for Mojave release date, if updating High Sierra.
September 30, 2015 El Capitan release date if updating Yosemite or earlier.
Apple's OS update cycle was as follows
Snow Leopard August 28, 2009
Lion July 22, 2011
Mountain Lion - El Capitan compatibility all exist on the same computer.
Sierra and and High Sierra compatibility are the same for slightly newer computers.
Xeon Mac Pros typically were released prior to 2013 unless you have the
Mac Pro, which was current until 2019.
If you have a 2019 or later Mac Pro let us know.
Vist http://checkcoverage.apple.com/ to verify the date of your computer using Apple menu -> About This Mac Serial number. Do not post the serial number on Apple Support Communities.
So the I have the 2013 one I guess
What do I have to do so I stop getting clock error message
