4 Time Zone Bugs I Ran Into
Software development is hard. Time zones are hard. Dealing with time zones in software development? Yeah, harder. Here are 4 places where time zones might differ; and 4 personal bug stories for each case. I'll be referring to the same app for each s...
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Oliver Jones
Here's another timezone bug. With a correct timezone file, I once tried to convert a local time of 2018-03-23 02:15 to UTC time. It failed with some sort of "incorrect date/time value" exception. It was buried in a big batch of otherwise correct data, which made it worse to track down.
It turned out that, in my timezone (America/New_York) that time didn't exist! That was daylight time switchover day in 2018. The local clock ticks from 01:59 to 03:00 on that day.