from_unixtime
Description
Converts a UNIX timestamp into the required time format. The default format is yyyy-MM-dd HH:mm:ss
. It also supports the formats in date_format.
Currently, string_format
supports the following formats:
%Y: Year e.g.: 2014, 1900
%m: Month e.g.: 12, 09
%d: Day e.g.: 11, 01
%H: Hour e.g.: 23, 01, 12
%i: Minute e.g.: 05, 11
%s: Second e.g.: 59, 01
Other formats are invalid and NULL will be returned.
Syntax
VARCHAR from_unixtime(BIGINT unix_timestamp[, VARCHAR string_format])
Parameters
-
unix_timestamp
: the UNIX timestamp you want to convert. It must be of the BIGINT type. If the specified timestamp is less than 0 or larger than 253402243199, NULL will be returned. That is, the range for timestamp is1970-01-01 00:00:00
to9999-12-30 11:59:59
(varies because of timezone). -
string_format
: the required time format.
Return value
Returns a DATETIME or DATE value of the VARCHAR type. If string_format
specifies the DATE format, a DATE value of the VARCHAR type is returned.
If the timestamp exceeds the value range or if string_format
is invalid, NULL will be returned.
Examples
MySQL > select from_unixtime(1196440219);
+---------------------------+
| from_unixtime(1196440219) |
+---------------------------+
| 2007-12-01 00:30:19 |
+---------------------------+
MySQL > select from_unixtime(1196440219, 'yyyy-MM-dd HH:mm:ss');
+--------------------------------------------------+
| from_unixtime(1196440219, 'yyyy-MM-dd HH:mm:ss') |
+--------------------------------------------------+
| 2007-12-01 00:30:19 |
+--------------------------------------------------+
MySQL > select from_unixtime(1196440219, '%Y-%m-%d');
+-----------------------------------------+
| from_unixtime(1196440219, '%Y-%m-%d') |
+-----------------------------------------+
| 2007-12-01 |
+-----------------------------------------+
MySQL > select from_unixtime(1196440219, '%Y-%m-%d %H:%i:%s');
+--------------------------------------------------+
| from_unixtime(1196440219, '%Y-%m-%d %H:%i:%s') |
+--------------------------------------------------+
| 2007-12-01 00:30:19 |
+--------------------------------------------------+
keyword
FROM_UNIXTIME,FROM,UNIXTIME