This calendar shows dates specific to the GPS community, in which:

• The Week presents the full GPS week number since the 1st epoch (Jan 06, 1980)
• The [Sun-Sat] : [0-6] presents day of week and day of week number
• The [1-31] : [1-366] presents day of month and day of year
• Handy one-pager GPS CALS

References:

• Modified Julian Date from Eric Weisstein's World of Science at http://scienceworld.wolfram.com/astronomy/ModifiedJulianDate.html