MySql TimeStamp
A TIMESTAMP column is useful for recording the date and time of an INSERT or UPDATE operation.
By default, the first TIMESTAMP column in a table is automatically set to the date and time of the most recent operation if you do not assign it a value yourself.
You can also set any TIMESTAMP column to the current date and time by assigning it a NULL value.
10.3.1.1 TIMESTAMP Properties
TIMESTAMP values are converted from the current time zone to UTC for storage, and converted back from UTC to the current time zone for retrieval.
(This occurs only for the TIMESTAMP data type, not for other types such as DATETIME.)
By default, the current time zone for each connection is the server's time.
refreshed TIMESTAMP DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP
REFERRERS
MySqlDataTypes
