![]() ![]() If you want to get the current date and time that does advance during the transaction, you can use the TIMEOFDAY() function. Note that the pg_sleep() function pauses the current session’s process sleep a specified of seconds. In this example, we called the NOW() function within a transaction and as you can see its return values do not change through the transaction. Postgres= # COMMIT COMMIT Code language: SQL (Structured Query Language) ( sql ) The following example illustrates the concept: postgres= # BEGIN BEGIN ![]() In other words, the return values of the function calls are the same within a transaction. Notice that NOW() and its related functions return the start time of the current transaction. To get the current date and time without time zone, you use the LOCALTIME and LOCALTIMESTAMP functions. To get 2 hours 30 minutes ago, you use the minus (-) operator as follows: SELECT now() - interval '2 hours 30 minutes' AS two_hour_30_min_go Ĭode language: SQL (Structured Query Language) ( sql ) PostgreSQL NOW() related functionsīesides the NOW() function, you can use the CURRENT_TIME or CURRENT_TIMESTAMP to get the current date and time with timezone: SELECT CURRENT_TIME, CURRENT_TIMESTAMP To get this time tomorrow, you add 1 day to the current time: SELECT ( NOW() + interval '1 day') AS this_time_tomorrow For example, to get 1 hour from now: SELECT ( NOW() + interval '1 hour') AS an_hour_later You can use the common date and time operator to the NOW() function. If you want get the current date and time without timezone, you can cast it explicitly as follows: SELECT NOW():: timestamp Note that the NOW() function returns current date and time based on the database server’s time zone setting.įor example, if we change the timezone to ‘America/Los_Angeles’: SET TIMEZONE= 'America/Los_angeles' Īnd get the current date and time: SELECT NOW() Īs you can see, the value returned by the NOW() function is adjusted to the new timezone. See the following example: SELECT NOW() Ĭode language: SQL (Structured Query Language) ( sql ) The return type of the NOW() function is the timestamp with time zone. ![]() The NOW() function returns the current date and time. Introduction to PostgreSQL NOW() function Summary: this tutorial shows you how to use the PostgreSQL NOW() function to get the date and time with time zone. ![]()
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