: Standard C Date/Time Library: Programming the World's Calendars and Clocks Get your Kindle here, or download a FREE Kindle Reading App. The correct algorithm is available from (the U.S. Naval Observatory's website).
10 Best Dating Apps - Tom's Guide
Don't Like Tinder? Here Are Alternative Dating Apps: Hinge, Happn
IBM Security Finds Over 60 Percent of Popular Dating Apps
Consumer Alert: Dating APP's dangers - Cleveland 19 News