If the EU abolishes DST in its member states, there won’t be any patches or updates necessary to software out there. The timezone database will simply be updated to reflect the change of policy and bam, once your system has the new tzdata, restart your apps and they will automatically understand it. This is not like the Y2K bug that needed actual patches.
Unless the software implemented timezones wrong, for example as tz column in the database with a signed integer. This breaks as soon as you have 30 min Timezone offsets, or try to compare north earth timezones vs south earth timezones where the change between summer and wintertime 2 months apart.
There are lots of systems (embedded, mostly offline, abandoned by its vendor) which are not easily upgradeable and their timezone database cannot be easily replaced.
Not everything is a PC getting its regular software update.
If the EU abolishes DST in its member states, there won’t be any patches or updates necessary to software out there. The timezone database will simply be updated to reflect the change of policy and bam, once your system has the new tzdata, restart your apps and they will automatically understand it. This is not like the Y2K bug that needed actual patches.
Unless the software implemented timezones wrong, for example as tz column in the database with a signed integer. This breaks as soon as you have 30 min Timezone offsets, or try to compare north earth timezones vs south earth timezones where the change between summer and wintertime 2 months apart.
Ask me how I know 🫠
Holy shit that’s absolute software gore. Especially since we’ve had timestamp with tz since forever.
There are lots of systems (embedded, mostly offline, abandoned by its vendor) which are not easily upgradeable and their timezone database cannot be easily replaced. Not everything is a PC getting its regular software update.