Tim Mackinnon wrote > I am also wondering if the issue with Timespan is concerning - I was > surprised that putting a start and end date left me something that didn’t > answer my end date presumably down to rounding when it’s converted down to > a duration (making me wonder if its better to keep a start and end date > and calculate the duration on the fly). > > Tim
The Timespans are half open intervals. (https://en.wikipedia.org/wiki/Interval_(mathematics)) Friday July 21st ends at 11:59:59.99999999999... etc etc etc ...9999PM and the 22nd starts at 12:00AM If Timespans were closed intervals like you expect then we'd be out of whack with our corner of the universe. That extra clock tick adds complexity. But I add a method to my image called #displayEnd because I also want them to print 3PM-4PM and not 3PM-3:59:59.999999999PM and use that in my print statements and rendering for Seaside. displayEnd ^ start + duration -- View this message in context: http://forum.world.st/How-to-calculate-someone-s-age-elegantly-Does-Duration-work-tp4955990p4956114.html Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.
