Hi Brian, On 2013-02-28 09:05 Brian E Carpenter said: > 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? Probably not: I think it's the 00:00 which some people tend to (unconsciously) translate to 'Midnight', and midnight at a certain date is, exactly as you point out below, somewhat less clear. > 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. Ack. I'll try to get acceptance for that. Best regards, Henrik