DateUtil for

From Witkowski Design:

DateUtil Can be used as a count down clock (e.g. millenium countdown) or an elapsed time counter (e.g. to instantly tell you your age or how long you've worked somewhere). It can also be useful in the medical field for doing advanced date calculations such as a pregnancy calculator: calculate the past date of conception then take that date and project 40 weeks forward to the expected Birth Date. DateUtil does all this and so much more!