You can buy this project and download/modify it how often you want.
https/zoneinfo - tzurl.org https/zoneinfo Africa America Antarctica Arctic Asia Atlantic Australia Brazil Canada Chile Etc Europe Indian Mexico Pacific US CET.ics CST6CDT.ics EET.ics EST.ics EST5EDT.ics HST.ics MET.ics MST.ics MST7MDT.ics PST8PDT.ics WET.ics
