NOW [date/time]

Returns a value of type TIMESTAMP WITH TIME ZONE representing the start of the current transaction. NOW is equivalent to CURRENT_TIMESTAMP except that it does not accept a precision parameter.

The return value does not change during the transaction. Thus, multiple calls to CURRENT_TIMESTAMP within the same transaction return the same timestamp.

Behavior type

Syntax

NOW()

Examples

=> CREATE TABLE t1 (a int, b int);
CREATE TABLE
=> INSERT INTO t1 VALUES (1,2);
 OUTPUT
--------
      1
(1 row)

=> SELECT NOW();
             NOW
------------------------------
 2016-12-09 13:00:08.74685-05
(1 row)

=> INSERT INTO t1 VALUES (3,4);
 OUTPUT
--------
      1
(1 row)

=> SELECT NOW();
             NOW
------------------------------
 2016-12-09 13:00:08.74685-05
(1 row)

=> COMMIT;
COMMIT
dbadmin=> SELECT NOW();
              NOW
-------------------------------
 2016-12-09 13:01:31.420624-05
(1 row)