CONVERT_TZ(dt,from_tz,to_tz)CONVERT_TZ() converts a datetime value dt from the time zone given by from_tz to the time zone given by to_tz and returns the resulting value.
In order to use named time zones, such as GMT, MET or Africa/Johannesburg, the time_zone tables must be loaded (see mysql_tzinfo_to_sql).
No conversion will take place if the value falls outside of the supported TIMESTAMP range ('1970-01-01 00:00:01' to '2038-01-19 05:14:07' UTC) when converted from from_tz to UTC.
This function returns NULL if the arguments are invalid (or named time zones have not been loaded).
See time zones for more information.
SELECT CONVERT_TZ('2016-01-01 12:00:00','+00:00','+10:00');
+-----------------------------------------------------+
| CONVERT_TZ('2016-01-01 12:00:00','+00:00','+10:00') |
+-----------------------------------------------------+
| 2016-01-01 22:00:00 |
+-----------------------------------------------------+Using named time zones (with the time zone tables loaded):
SELECT CONVERT_TZ('2016-01-01 12:00:00','GMT','Africa/Johannesburg');
+---------------------------------------------------------------+
| CONVERT_TZ('2016-01-01 12:00:00','GMT','Africa/Johannesburg') |
+---------------------------------------------------------------+
| 2016-01-01 14:00:00 |
+---------------------------------------------------------------+The value is out of the TIMESTAMP range, so no conversion takes place:
SELECT CONVERT_TZ('1969-12-31 22:00:00','+00:00','+10:00');
+-----------------------------------------------------+
| CONVERT_TZ('1969-12-31 22:00:00','+00:00','+10:00') |
+-----------------------------------------------------+
| 1969-12-31 22:00:00 |
+-----------------------------------------------------+This page is licensed: GPLv2, originally from fill_help_tables.sql
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