unix_timestamp

Description

Syntax

INT UNIX_TIMESTAMP(), UNIX_TIMESTAMP(DATETIME date)

Converting a Date or Datetime type to a UNIX timestamp.

If there are no parameters, the current time is converted into a timestamp.

The parameter needs to be Date or Datetime type.

Any date before 1970-01-01 00:00:00 or after 2038-01-19 03:14:07 will return 0.

This function is affected by time zone.

example

  1. mysql> select unix_timestamp();
  2. +------------------+
  3. | unix_timestamp() |
  4. +------------------+
  5. |       1558589570 |
  6. +------------------+
  8. mysql> select unix_timestamp('2007-11-30 10:30:19');
  9. +---------------------------------------+
  10. | unix_timestamp('2007-11-30 10:30:19') |
  11. +---------------------------------------+
  12. |                            1196389819 |
  13. +---------------------------------------+
  15. mysql> select unix_timestamp('1969-01-01 00:00:00');
  16. +---------------------------------------+
  17. | unix_timestamp('1969-01-01 00:00:00') |
  18. +---------------------------------------+
  19. |                                     0 |
  20. +---------------------------------------+

keyword

  1. UNIX_TIMESTAMP,UNIX,TIMESTAMP