How to Convert UTC Dates to Local Time Zone in MySQL Select Query?

Converting UTC Dates to Local Time Zone in MySQL Select Query

Issue

You are working with a MySQL query that contains a "displaytime" column that stores timestamps in UTC. However, you need to display the timestamps in the local time zone. The CONVERT_TZ() function is not working as expected.

Solution

To convert a UTC timestamp to a local time zone using the CONVERT_TZ() function, you must specify the time zone abbreviations for both the UTC and local time zones. The correct syntax is as follows:

SELECT CONVERT_TZ(displaytime, 'UTC', 'LOCAL')

Example Query

WHERE displaytime >= '2012-12-01 00:00:00'
AND displaytime <p>Modified Query:</p><pre class="brush:php;toolbar:false">WHERE CONVERT_TZ(displaytime, 'UTC', 'LOCAL') >= '2012-12-01 00:00:00'
AND CONVERT_TZ(displaytime, 'UTC', 'LOCAL') <h3 id="Troubleshooting">Troubleshooting</h3><p>If CONVERT_TZ() is not working, it could be due to missing or empty time zone tables. You can initialize the time zone tables using the mysql_tzinfo_to_sql program.</p>

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