The personal web site of Rick Koshko (married name Rick Wiegmann Koshko). To email me, click here for the email form. I currently use these social networks: LinkedIn, Twitter, Facebook. My compendium of links to useful, interesting, and cool web sites.
Day-of-the-week formula Day-of-week calculator Possible dates for day, month, and year Possible months for a day, date, and year Possible years for a day, month, and date Days between dates Easter date calculator 400-year perpetual calendar Gregorian Calendar Lookup Julian Day number calculator
To contact me Click here for the email form.
Calendars are cool! Well, this is another one of those things I'm into that either you're into or you're not.