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The tz database partitions the world into regions where local clocks all show the same time. This map was made by combining version 2023d with OpenStreetMap data, using open source software. [1] This is a list of time zones from release 2025a of the tz database. [2]
Each zone line for a zone specifies, for a range of date and time, the offset to UTC for standard time, the name of the set of rules that govern daylight saving time (or a hyphen if standard time always applies), the format for time zone abbreviations, and, for all but the last zone line, the date and time at which the range of date and time ...
Date and time notation in New Zealand [refresh] Full date 1 February 2025 All-numeric date 2025-02-01 01/02/2025 Time 13:15 1:15 pm Date and time notation in New Zealand most commonly records the date using the day-month-year format (1 February 2025), while the ISO 8601 format (2025-02-01) is increasingly used for all-numeric dates, such as date of birth. The time can be written using either ...
This change was made permanent from 1946 by the Standard Time Act 1945, [9] at which the time at the 180°E meridian was made the basis for New Zealand Time. [10] NZST remained half an hour ahead of NZMT, and the Chatham Islands 45 minutes ahead of NZST. The use of atomic clocks, which can measure time extremely accurately, led to the adoption ...
This is a list of free and open-source software (FOSS) packages, computer software licensed under free software licenses and open-source licenses. Software that fits the Free Software Definition may be more appropriately called free software ; the GNU project in particular objects to their works being referred to as open-source . [ 1 ]
Date and time notation around the world varies.. An approach to harmonize the different notations is the ISO 8601 standard.. Since the Internet is a main enabler of communication between people with different date notation backgrounds, and software is used to facilitate the communication, RFC standards and a W3C tips and discussion paper were published.
ISO 8601 is an international standard covering the worldwide exchange and communication of date and time-related data.It is maintained by the International Organization for Standardization (ISO) and was first published in 1988, with updates in 1991, 2000, 2004, and 2019, and an amendment in 2022. [1]
Standard format: 1- or 2-digit day, the spelled-out month, and 4-digit year (e.g. 4 February 2023) Civilian format: spelled out month, 1-or 2-digit day, a comma, and the 4-digit year (e.g. February 4, 2023). [12] Date Time Group format, used most often in operation orders. This format uses DDHHMMZMONYY, with DD being the two-digit day, HHMM ...