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The format string used in strftime traces back to at least PWB/UNIX 1.0, released in 1977. Its date system command includes various formatting options. [2] [3] In 1989, the ANSI C standard is released including strftime and other date and time functions. [4]
Time Name Nationality Date Meet Location Ref 50 m freestyle: 21.04 +0.13: Caeleb Dressel United States: 27 July 2019: World Championships: Gwangju, South Korea [1] 200 m freestyle: 1:42.97 +0.97: David Popovici Romania: 15 August 2022: European Championships: Rome, Italy [2] 400 m freestyle: 3:40.08 +0.01: Ian Thorpe Australia: 30 July 2002 ...
The time-to-digital converter measures the time between a start event and a stop event. There is also a digital-to-time converter or delay generator. The delay generator converts a number to a time delay. When the delay generator gets a start pulse at its input, then it outputs a stop pulse after the specified delay.
As of January 2013, CMAS recognises world and other records for the following techniques and distances for both males and females in the age groups of Senior (i.e. 18 years and older) and Junior (i.e. 12 to 17 years old) where these are made in an Olympic-size swimming pool (i.e. 50m length) and are measured by electronic automatic officiating equipment:
Standard 24-hour time is converted into a fractional day by dividing the number of hours elapsed since midnight by 24 to make a decimal fraction. Thus, midnight is 0.0 day, noon is 0.5 d, etc., which can be added to any type of date, including (all of which refer to the same moment): Gregorian dates: 2000 January 1.5; Two-line elements: 00001. ...
On 25 July 2013, FINA Technical Swimming Congress voted to allow world records in the long course mixed 400 free relay and mixed 400 medley relay, as well as in six events in short course metres: the mixed 200 medley and 200 free relays, as well as the men's and women's 200 free relays and the men's and women's 200 medley relays. [6]
Unix time [a] is a date and time representation widely used in computing. It measures time by the number of non-leap seconds that have elapsed since 00:00:00 UTC on 1 January 1970, the Unix epoch. For example, at midnight on 1 January 2010, Unix time was 1262304000. Unix time originated as the system time of Unix operating systems.
The swimming program for 1988 included two new events, the men's and women's 50 m freestyle, bringing the total number of events to 31. The following events were contested: Freestyle: 50 m, 100 m, 200 m, 400 m, 800 m (women), 1500 m (men), Backstroke: 100 m, 200 m; Breaststroke: 100 m, 200 m; Butterfly: 100 m, 200 m; Individual Medley: 200 m, 400 m