Easy steps to install cctz package on Mac
Package Information:
Application Name – cctz
What is cctz – Not Available for cctz
Use of cctz – C++ library for translating between absolute and civil times
URL – https://github.com/google/cctz
Installation Steps:
- Open Terminal using Spotlight search by pressing 
<command+space>. Type terminal and hitEnterkey. - Now, run following command to install homebrew (brew)
 - Install cctz using brew
brew install cctz
 

ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)" < /dev/null 2> /dev/null

cctz is ready to use now!