In MySQL, the UNIX timestamp format is a way of representing time values as integers. The integer value representing the date value will be the number of seconds. The starting date for calculating these seconds is "1970-01-01".
mysql> SELECT UNIX_TIMESTAMP('2017-10-22 04:05:36')AS 'Total Number of Seconds'; +-------------------------+ | Total Number of Seconds | +-------------------------+ | 1508625336 | +-------------------------+ 1 row in set (0.00 sec)
UNIX_TIMESTAMP value is 10 bits long.
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