This week's book giveaway is in the OO, Patterns, UML and Refactoring forum.
We're giving away four copies of Refactoring for Software Design Smells: Managing Technical Debt and have Girish Suryanarayana, Ganesh Samarthyam & Tushar Sharma on-line!
See this thread for details.
The moose likes Java in General and the fly likes Date arithmetic Big Moose Saloon
  Search | Java FAQ | Recent Topics | Flagged Topics | Hot Topics | Zero Replies
Register / Login

JavaRanch » Java Forums » Java » Java in General
Bookmark "Date arithmetic" Watch "Date arithmetic" New topic

Date arithmetic

Simon Good
Ranch Hand

Joined: Sep 19, 2002
Posts: 30
How do I go about calculating the number of days between two dates? Is there a simple way to do it?
Michael Dunn
Ranch Hand

Joined: Jun 09, 2003
Posts: 4632
Depends on what answer you want
how many days between monday and friday - 5?
how many days between 15th and 19th - 4?
actual days in-between 15th and 19th = 3
You can convert the dates to milliseconds, then subtract dt1 from dt2, then
convert the result back to days.
Here's a way where you can easily change the code, depending on the output
you want.
Have you checked out Aspose?
subject: Date arithmetic
It's not a secret anymore!