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Asked: 2026-05-27T17:13:16+00:00

I’m storing DateTimes as timestamps in my MySQL database. Joda Time is interpreting the

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I’m storing DateTimes as timestamps in my MySQL database. Joda Time is interpreting the AM/PM part of these DateTimes incorrectly.

DateTime dt = new DateTime(1324231621L * 1000); // long pulled from DB as timestamp
DateTimeFormatter fmt = DateTimeFormat.forPattern("h:mm aa z");
String timeStr = fmt.print(dt);

The above should result in 12:07 AM CST but instead results in 12:07 PM CST.

It looks like it’s interpreting the hours as 24-hour based, but I’m using a lowercase “h”, so I don’t know why. What’s the real reason?

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  1. Editorial Team

    I think you’ve got the wrong value – that timestamp is 2011-12-18T18:07:01 UTC – so it is 12:07pm in CST. If it was meant to be 12:07am, that would suggest that whatever was involved in getting it into the long form to start with is at fault – whether that’s the process which put it in the database to start with, or the way that you’ve pulled it from the database.

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