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  3. Today's news and then daily build - MoreDateTime

Today's news and then daily build - MoreDateTime

Scheduled Pinned Locked Moved The Lounge
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  • N Nelek

    mmm "retired author?" that's new. @sean-ewington wanna have a look?

    M.D.V. ;) If something has a solution... Why do we have to worry about?. If it has no solution... For what reason do we have to worry about? Help me to understand what I'm saying, and I'll explain it better to you Rating helpful answers is nice, but saying thanks can be even nicer.

    S Offline
    S Offline
    Sean Ewington
    wrote on last edited by
    #3

    Weird. All fixed.

    Thanks, Sean Ewington CodeProject

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    • O obermd

      Sounds like someone here tried to resolve today's insider news [xkcd: DateTime](https://xkcd.com/2867) [MoreDateTime - ExtendedDateTime Extension Library for .NET](https://www.codeproject.com/Articles/5369084/MoreDateTime-ExtendedDateTime-Extension-Library-fo)

      J Offline
      J Offline
      Julian Ragan
      wrote on last edited by
      #4

      I really don't understand this one, I have solved this kind of problem multiple times in different languages on different platforms.

      Mircea NeacsuM 1 Reply Last reply
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      • J Julian Ragan

        I really don't understand this one, I have solved this kind of problem multiple times in different languages on different platforms.

        Mircea NeacsuM Offline
        Mircea NeacsuM Offline
        Mircea Neacsu
        wrote on last edited by
        #5

        Julian Ragan wrote:

        I have solved this kind of problem multiple times

        Really? Did you account for all possible issues: - are T1 and T2 in the same time zone? - did Daylight Saving Time occur between T1 and T2? - did rules for DST changed between T1 and T2? - where any leap second jumps between T1 and T2? Randall knows best :D

        Mircea

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        • Mircea NeacsuM Mircea Neacsu

          Julian Ragan wrote:

          I have solved this kind of problem multiple times

          Really? Did you account for all possible issues: - are T1 and T2 in the same time zone? - did Daylight Saving Time occur between T1 and T2? - did rules for DST changed between T1 and T2? - where any leap second jumps between T1 and T2? Randall knows best :D

          Mircea

          J Offline
          J Offline
          Julian Ragan
          wrote on last edited by
          #6

          Oh dear, seems I have never needed that much accuracy after all. And in some cases such deliberations would not be possible on target platform.

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          • Mircea NeacsuM Mircea Neacsu

            Julian Ragan wrote:

            I have solved this kind of problem multiple times

            Really? Did you account for all possible issues: - are T1 and T2 in the same time zone? - did Daylight Saving Time occur between T1 and T2? - did rules for DST changed between T1 and T2? - where any leap second jumps between T1 and T2? Randall knows best :D

            Mircea

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            obermd
            wrote on last edited by
            #7

            Don't forget Are T1 and T2 in the same relativistic frame?

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            • O obermd

              Don't forget Are T1 and T2 in the same relativistic frame?

              P Offline
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              PIEBALDconsult
              wrote on last edited by
              #8

              And how many commercial breaks were there during that period?

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              • Mircea NeacsuM Mircea Neacsu

                Julian Ragan wrote:

                I have solved this kind of problem multiple times

                Really? Did you account for all possible issues: - are T1 and T2 in the same time zone? - did Daylight Saving Time occur between T1 and T2? - did rules for DST changed between T1 and T2? - where any leap second jumps between T1 and T2? Randall knows best :D

                Mircea

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                PIEBALDconsult
                wrote on last edited by
                #9

                Always interchange and compare dates/times in UTC. I wouldn't bother with leap seconds unless you need to know the seconds, and you generally don't.

                Mircea NeacsuM 1 Reply Last reply
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                • P PIEBALDconsult

                  Always interchange and compare dates/times in UTC. I wouldn't bother with leap seconds unless you need to know the seconds, and you generally don't.

                  Mircea NeacsuM Offline
                  Mircea NeacsuM Offline
                  Mircea Neacsu
                  wrote on last edited by
                  #10

                  I agree with you, but I know some people in the lounge were arguing for using local time. Go figure!

                  Mircea

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                  • Mircea NeacsuM Mircea Neacsu

                    I agree with you, but I know some people in the lounge were arguing for using local time. Go figure!

                    Mircea

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                    PIEBALDconsult
                    wrote on last edited by
                    #11

                    Say it ain't so. Probably the sort who wear digital watches and read off the exact time to the second. :rolleyes:

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                    • O obermd

                      Don't forget Are T1 and T2 in the same relativistic frame?

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                      BernardIE5317
                      wrote on last edited by
                      #12

                      to continue the Relativistic vein though perhaps you are previously aware it is interesting / curious to note the speed of light is impossible to measure . Why No One Has Measured The Speed Of Light - YouTube[^]

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                      • O obermd

                        Sounds like someone here tried to resolve today's insider news [xkcd: DateTime](https://xkcd.com/2867) [MoreDateTime - ExtendedDateTime Extension Library for .NET](https://www.codeproject.com/Articles/5369084/MoreDateTime-ExtendedDateTime-Extension-Library-fo)

                        J Offline
                        J Offline
                        jschell
                        wrote on last edited by
                        #13

                        At some point it is not possible to generalize this sort thing. I worked on a system where a work flow needed to be resolved within '3 business days'. So a casual developer is going to look at that and perhaps understand it means 'skip the weekends' But in fact it is quite a bit more complex. - A business day consisted of 8 hours. - Holidays were not business days. (This of course required adding a complete sub-system to allow them to specify holidays.) - A work flow could be started in California but would be viewed and acted upon in New York. So obviously time zones were relevant. Also consider the complications for the following sort of report - Company operates brick and mortar stores across the country - Company has an online site to order products - VP asks for a report that summarizes sales during the 'lunch hour'

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