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MySQL 5.7 Reference Manual
Related Documentation Download this Manual Excerpts from this Manual Replication and Time Zones

By default, master and slave servers assume that they are in the same time zone. If you are replicating between servers in different time zones, the time zone must be set on both master and slave. Otherwise, statements depending on the local time on the master are not replicated properly, such as statements that use the NOW() or FROM_UNIXTIME() functions. Set the time zone in which MySQL server runs by using the --timezone=timezone_name option of the mysqld_safe script or by setting the TZ environment variable. See also Section, “Replication and System Functions”.

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