On 27/02/2013 18:04, Henrik Levkowetz wrote: > Hi Melinda, > > On 2013-02-26 23:31 Melinda Shore said: >> On 2/26/13 1:25 PM, Paul E. Jones wrote: >>> Seriously, what the heck is 24:00? >> That one is weird, no doubt about it, but ultimately >> it's 23:59 + 1 minute, which is clear. But I really >> think "24:00" is confusing. 0:00 is clearer. I'm >> wondering if they're trying to work around some ferkakte >> piece of software. > > No, it's just trying to provide a time indication that people > will easily interpret correctly. Trying out the correct > notation (using 00:00 and the following date) on people > during informal testing, I found that people were much more > prone to interpret that as the deadline being 24 hours later > than was intended. Strange. Do they think that a train that departs at 00:01 is 23 hours and 59 minutes earlier than one that departs at 00:00? However, the phrase "midnight on Monday" is certainly unclear. I suppose it means 00:00 on Tuesday, but maybe not. But in any case, while teaching, I chose to set assignment deadlines at 23:59 for exactly this reason - nothing is completely idiot proof, but this seems to work out OK. Brian