Template:Start week 1

1

For ISO 8601 year-month-day and Julian BC, finds offset of start week 1 from 1 January.

year / "Doomsday" / weekday New Year / offset start week 1 / orddate 28 Feb / orddate 1 Mar

• -100 1 5 3 59 60
• -99 2 7 1 59 60
• -2 4 2 -1 59 60
• -1 5 3 -2 59 60
• 0 2 6 2 59 61 (from here dates are interpreted according to the w:proleptic Gregorian calendar)
• 1 3 1 0 59 60
• 2 4 2 -1 59 60
• 3 5 3 -2 59 60
• 4 7 4 -3 59 61
• 100 7 5 3 59 60
• 101 1 6 2 59 60
• 400 2 6 2 59 61
• 401 3 1 0 59 60
• 2006 2 7 1 59 60
• 2007 3 1 0 59 60
• 2008 5 2 -1 59 61
• 2009 6 4 -3 59 60
• 2010 7 5 3 59 60
• 2011 1 6 2 59 60
• 2012 3 7 1 59 61
• 2013 4 2 -1 59 60
• 2014 5 3 -2 59 60