May 8, 2025 · All the date/time data types also accept the special literal value now to specify the current date and time (again, interpreted as the transaction start time). Thus, the following three all return the same result:

May 8, 2025 · PostgreSQL supports the full set of SQL date and time types, shown in Table 8.9. The operations available on these data types are described in Section 9.9. Dates are counted according to the Gregorian calendar, even in years before that calendar was introduced (see Section B.6 for more information).

May 8, 2025 · PostgreSQL has a rich set of native data types available to users. Users can add new types to PostgreSQL using the CREATE TYPE command. Table 8.1 shows all the built-in general-purpose data types.

May 8, 2025 · The PostgreSQL formatting functions provide a powerful set of tools for converting various data types (date/time, integer, floating point, numeric) to formatted strings and for converting from formatted strings to specific data types.

Dec 13, 2014 · One of PostgreSQL's joys is a robust support of a variety of date and time data types and their associated operators. This has allowed me to write calendaring applications in PostgreSQL that would have been considerably more difficult on other platforms.

3 days ago · Your testing and feedback helps the community ensure that PostgreSQL 18 upholds our standards of delivering a stable, reliable release of the world's most advanced open source relational database. Please read more about our beta testing process and how you can contribute.

Sep 26, 2024 · PostgreSQL, an innovative data management system known for its reliability, robustness, and extensibility, benefits from over 25 years of open source development from a global developer community and has become the preferred open source relational database for organizations of all sizes.

May 8, 2025 · PostgreSQL treats a Julian Date as running from local midnight to local midnight, the same as a normal date. This definition does, however, provide a way to obtain the astronomical definition when you need it: do the arithmetic in time zone UTC+12 .

May 8, 2025 · These comparison operators are available for all built-in data types that have a natural ordering, including numeric, string, and date/time types. In addition, arrays, composite types, and ranges can be compared if their component data types are comparable.

May 8, 2025 · Date/time input strings are decoded using the following procedure. Break the input string into tokens and categorize each token as a string, time, time zone, or number. If the numeric token contains a colon ( : ), this is a time string.