What's your worst time zone story?

When you get the timezone through an api in javascript and there is no code to convert it. Also, BST can mean 3 different timezones according to the specs.

Good thing: I did a small rant on this and the server codes will be updated everywhere to UTC.
Bad thing: don't know when.

Oh man. My first consulting project right out of school, we were building a web app that showed available dates on a hacked-up jQuery datepicker. This thing was a mess, but that's what happens when you let a fresher build a whole feature with 0 code review.

So, 1 day 'til the end of the contract, we get told there was an issue during the latest demo... All the dates were showing up unavailable when they weren't! After practically 24 hours of research and debugging, I discovered it had to do with the client being in a different time zone than the server....

Hackitty hack hack.

Supporting every continent for a global insurance company. Meetings from 7am 'til 11pm. Interesting by long day - and sometimes weekends.

Not strictly code related, but ...

Years ago I worked for a software company that sent me to Paris, France from California for four months. We were rolling out a new version of software with then specialized features for the European market (VAT handling and such). The affiliate which sold and supported our software in Europe wanted a home Tech there to oversee the process.

While I was there, we were upgrading some global brands and had they had stores all across the world, including Asia.

So there I was, from California to do upgrades in Europe, but they had another Tech traveling through Asia for those stores. I had to be in the office 2am Paris time to support him during regular business hours Hong Kong time ... and here I am from California time.

Had a developer use 3 different libraries to get timezone client side, validate timezone sever side and store in database. Did some hacking, still buggy