Why ISO date norms sows fear in hearts of developers? Let's see what week number it is on Jan 1 and Dec 31 of various years (2012 is my personal winner - and yes, norm is good, dates and weeks are simply difficult):
Year 2000 starts with week 52 and ends with week 52
Year 2001 starts with week 1 and ends with week 1
Year 2002 starts with week 1 and ends with week 1
Year 2003 starts with week 1 and ends with week 1
Year 2004 starts with week 1 and ends with week 53
Year 2005 starts with week 53 and ends with week 52
Year 2006 starts with week 52 and ends with week 52
Year 2007 starts with week 1 and ends with week 1
Year 2008 starts with week 1 and ends with week 1
Year 2009 starts with week 1 and ends with week 53
Year 2010 starts with week 53 and ends with week 52
Year 2011 starts with week 52 and ends with week 52
Year 2012 starts with week 52 and ends with week 1
Year 2013 starts with week 1 and ends with week 1
Year 2014 starts with week 1 and ends with week 1
Year 2015 starts with week 1 and ends with week 53
Year 2016 starts with week 53 and ends with week 52
Year 2017 starts with week 52 and ends with week 52
Year 2018 starts with week 1 and ends with week 1
Year 2019 starts with week 1 and ends with week 1
Year 2020 starts with week 1 and ends with week 53
That's why, among other things...
Shared publiclyView activity