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Code code:"if (foo != bar)"
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This challenge is intended to be solved by using, manipulating, accepting as input, outputting, or calculating calendar dates or clock times.

8 votes
2 answers
309 views

Output ISO8601 date

timestamp output any of two valid ISO 8601 time formats: YYYY-MM-DDTHH:mm:SS or, alternatively, YYYY-MM-DD HH:mm:SS You may ignore any leap seconds, if you wish, as well as the timezone part of the date … Rules You must not use any built-in date functions, You may not use any string formatting functions (like printf), however sorting, reversing, changing case etc. is allowed, Your program may not contain …
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  • 755
7 votes

Stop, stand there where you are!

Commodore 64 BASIC, 19 16 bytes 1000 FORI=1TO930*N:NEXT:RETURN With a call N=<number-of-secods>:GOSUB1000. However, I cannot provide enough accuracy. Because C64 had about 1 MHz CPU speed, I remem …
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  • 755
2 votes

Leap for Leap Seconds!

PHP, 198 bytes foreach([.5,1,2,3,4,5,6,7,8,9.5,10.5,11.5,13.5,16,18,19,20.5,21.5,22.5,24,25.5,27,34,37,40.5,43.5] as$d){$h=(int)$d-ceil($d);echo date("Y-m-d 23:59:60",mktime(0,0,0,-6*$h,31+$h,(int)$d+ … \n";} Unfortunately, I don't know if I can insert \n in the date function. If so, this is 3 bytes less because of ."". …
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  • 755