Zoneinfo.time_zones

You're seeing just the function time_zones, go back to Zoneinfo module for more information.

Specs

time_zones() :: [String.t()]

Return all known time zones

This function scans the path returned by tzpath/0 for all time zones and performs a basic check on each file. It may not be fast. It will not return the aliases that zoneinfo uses for backwards compatibility even though they may still work.