Stock exchanges, airports, calendar-syncing apps, ... they are all going to have a fun couple of days. On Linux, it's usually just a matter of updating the "tz

Stock exchanges, airports, calendar-syncing apps, ... they are all going to have a fun couple of days. On Linux, it's usually just a matter of updating the "tzdata" package, assuming the sysadmin(s) responsible aren't on holiday and are keeping an eye on these sorts of announcements. For client-side apps with built-in timezone settings, updates are going to be trickier.