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Postgresql timestamp minus minutes5/26/2023 But if we use it with the - operator, then it will be added to the input date/time. If we use a negative value with the + operator, then the specified number of minutes will be subtracted from the input date/time. If timezone is not specified, the current time zone is used the examples assume the session time zone is Europe/London maketimestamptz (2013, 7, 15, 8, 15, 23.5) 08:15:23. It’s possible to perform date arithmetic with negative values. To calculate the difference between the timestamps in PostgreSQL, simply subtract the start timestamp from the end timestamp. Create timestamp with time zone from year, month, day, hour, minute and seconds fields (negative years signify BC). When doing this, it doesn’t have to be exactly a minute: SELECT time '15:45' + interval '93 seconds' We can also add a date and time value together, and add minutes to that: SELECT date '' + time '01:00' + interval '55 minutes' Īnother way to do it is to specify the equivalent number in seconds: SELECT time '15:45' + interval '60 seconds' We can even add minutes to a date value: SELECT date '' + interval '90 minutes' We can also add minutes to an interval: SELECT interval '5 hours' + interval '2 minutes' So to add one or more minutes, we can use minute or minutes: SELECT time '07:00' + interval '1 minute' Īnd in plural form: SELECT time '07:00' + interval '25 minutes' Īnd here it is with a timestamp value: SELECT timestamp ' 09:00' + interval '30 minutes' We can specify intervals when adding to dates and times. The PostgreSQL TOTIMESTAMP () function converts a string to a timestamp according to the specified format. We can also add minutes to a date value or a date and time combination. EXTRACT(field FROM source) The extract function retrieves subfields such as year or hour from date/time values. In PostgreSQL, we can use the + operator to add one or more minutes to a time value.īy “time” value, this could be an actual time value, a timestamp, or an interval.
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