[struant]

Local + Timezone is still going to be wrong if the people are viewing/planning this scheduled event are in different timezones and the timezone DB makes changes to either the viewers' or creator's timezone.

In my opinion, it is better to just store UTC when you can't possibly make the date right in advance for all users in all timezones anyway.

And if everyone does this, hopefully it discourages government from changing the timezone DB frivolously and without spending a lot of money broadcasting the changes to anyone that may be affected.