ISO 8601 is an international standard for representing dates and times, which helps remove doubts that can result from the various day-date conventions, cultures and time zones that impact a global operation.
It sets out an order of elements used to express date and time, including year, month, day, hour, minutes, seconds, and milliseconds.
It is maintained by the Geneva-based International Organization for Standardization (ISO) and was first published in 1988, with updates in 1991, 2000, 2004, and 2019, and an amendment in 2022.
ISO 8601 can be used to express date, time, datetime, duration, and interval values in the basic and extended notations.
ISO 8601 is an international standard covering the worldwide exchange and communication of date and time -related data. It is maintained by the Geneva -based International Organization for Standardization (ISO) and was first published in 1988, with updates in 1991, 2000, 2004, and 2019, and an amendment in 2022.
ISO 8601 - Wikipedia
ISO 8601 is an internationally accepted way to represent dates and times, which helps remove doubts that can result from the various day-date conventions, cultures and time zones that impact a global operation. It sets out an order of elements used to express date and time, including year, month, day, hour, minutes, seconds, and milliseconds. ISO 8601 can be used by anyone who wants to use a standardized way of presenting dates, such as Coordinated Universal Time (UTC), local time with an offset to UTC, date and time intervals, and recurring time intervals.
ISO - ISO 8601 — Date and time format
ISO 8601 describes a large number of date/time formats. To reduce the scope for error and the complexity of software, it is useful to restrict the supported formats to a small number. This profile defines a few date/time formats, likely to satisfy most requirements.
The International Standard for the representation
Date and Time Formats
The ISO 8601 standard defines an internationally recognized format for representing dates and times. For times, they are expressed with the notation hours-minutes-seconds . In the case of dates, the format is year-month-day . This basic format enables the numbers to be written directly after another.
ISO 8601: The global standard for date and time formats - IONOS
The ISO 8601 Basic and Extended Notations provide formatting symbols for dates, times, datetimes, durations, and interval values. SAS uses the formats in the table to write date, time, and datetime values in the ISO 8601 basic and extended notations from SAS date, time, and datetime values. An asterisk (*) is used in place of an out-of-range value that is out-of-range.
Formats: Working with Dates and Times Using the ISO 8601 Basic and Extended Notations - 9.2
xkcd: ISO 8601
Functions that require a date-time to be specified in ISO 8601 format (<iso-date-string>) will accept the following formats.
ISO 8601 date-time formats
Every component shown in the example below must be present when expressing a date in ISO 8601 format; this includes all punctuation characters and the "T" ...
ISO 8601 date format