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date to display the EDT time


How to command “Ping” display time and date of pingHow to stop the first command the failing to affect the second commandDate and time of execution of a programHow to command “hping3” display time and date of hping3Can I change the ipconfig names to the old convention? wlanX, ethX?crontab job not workingSet date and time from http header in router with curl or wgetIs the current Date/Time format retrievable?How to find a binary name with only the prefix?date -d 'previous Monday" to display the preceding Monday






.everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty,.everyoneloves__bot-mid-leaderboard:empty margin-bottom:0;








4















I want to check the time




Eastern Daylight Time
Time zone in Washington, DC, USA (GMT-4)
Thursday, May 9, 2019, 8:11 PM




However,



$ TZ="EDT" date
Fri May 10 00:12:25 EDT 2019


"EST" works properly



$ TZ="EST" date
Thu May 9 19:13:11 EST 2019


What's the problem?










share|improve this question






























    4















    I want to check the time




    Eastern Daylight Time
    Time zone in Washington, DC, USA (GMT-4)
    Thursday, May 9, 2019, 8:11 PM




    However,



    $ TZ="EDT" date
    Fri May 10 00:12:25 EDT 2019


    "EST" works properly



    $ TZ="EST" date
    Thu May 9 19:13:11 EST 2019


    What's the problem?










    share|improve this question


























      4












      4








      4








      I want to check the time




      Eastern Daylight Time
      Time zone in Washington, DC, USA (GMT-4)
      Thursday, May 9, 2019, 8:11 PM




      However,



      $ TZ="EDT" date
      Fri May 10 00:12:25 EDT 2019


      "EST" works properly



      $ TZ="EST" date
      Thu May 9 19:13:11 EST 2019


      What's the problem?










      share|improve this question
















      I want to check the time




      Eastern Daylight Time
      Time zone in Washington, DC, USA (GMT-4)
      Thursday, May 9, 2019, 8:11 PM




      However,



      $ TZ="EDT" date
      Fri May 10 00:12:25 EDT 2019


      "EST" works properly



      $ TZ="EST" date
      Thu May 9 19:13:11 EST 2019


      What's the problem?







      command-line bash






      share|improve this question















      share|improve this question













      share|improve this question




      share|improve this question








      edited May 10 at 2:28









      Kulfy

      6,11272451




      6,11272451










      asked May 10 at 0:14









      AliceAlice

      655112




      655112




















          2 Answers
          2






          active

          oldest

          votes


















          11














          date command doesn't know "EDT" timezone. If a timezone which isn't supported is passed in TZ the output will indeed show with entered time zone but time shown will be UTC.



          Supported time zones are listed in /usr/share/zoneinfo/. As of now time zones that can be used as a value for "TZ" are:



          Africa Cuba GMT0 Japan Pacific Turkey
          America EET GMT-0 Kwajalein Poland UCT
          Antarctica Egypt GMT+0 leap-seconds.list Portugal Universal
          Arctic Eire Greenwich Libya posix US
          Asia EST Hongkong localtime posixrules UTC
          Atlantic EST5EDT HST MET PRC WET
          Australia Etc Iceland Mexico PST8PDT W-SU
          Brazil Europe Indian MST right zone1970.tab
          Canada Factory Iran MST7MDT ROC zone.tab
          CET GB iso3166.tab Navajo ROK Zulu
          Chile GB-Eire Israel NZ Singapore
          CST6CDT GMT Jamaica NZ-CHAT SystemV


          The time zone for EDT is "EST5EDT". The output of TZ="EST5EDT" date as of 10 May 2019 02:11:26 UTC:



          Thu May 9 22:11:26 EDT 2019


          Or use city's name where EDT is used. Examples: America/Kentucky/Louisville, America/Kentucky/Monticello, America/New_York, Canada/Eastern, etc.



          Why EDT is EST5EDT?



          In short, it is a standard. Time zones are written like Timezone-Offset. Here - is minus or it can be said for time zones which are ahead of UTC are written like Timezone-Offset and for time zones that are behind UTC, it is written as TimezoneOffset. If the time zone has a pretty name like Eastern Standard Time, it can be written as EST or EST5. Both will produce same results.



          Now, Daylight Saving Time (DST) isn't observed everywhere (for example, India). For time zones where it is observed, time zones are written as Timezone-OffsetTimezoneDST, example: EET-2EETDST (Cyprus) but if DST has a fancy name like BST (British Summer Time), it is written as Timezone-OffsetFancy_name, i.e. GMT0BST. Similary, EDT is EST5EDT. On this Oracle document you can see all standardized time zones.






          share|improve this answer
































            9














            EDT is ambiguous when considered internationally. You can get the time you are seeking by doing



            $ TZ="America/New_York" date
            Thu May 9 22:11:16 EDT 2019





            share|improve this answer























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              2 Answers
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              active

              oldest

              votes








              2 Answers
              2






              active

              oldest

              votes









              active

              oldest

              votes






              active

              oldest

              votes









              11














              date command doesn't know "EDT" timezone. If a timezone which isn't supported is passed in TZ the output will indeed show with entered time zone but time shown will be UTC.



              Supported time zones are listed in /usr/share/zoneinfo/. As of now time zones that can be used as a value for "TZ" are:



              Africa Cuba GMT0 Japan Pacific Turkey
              America EET GMT-0 Kwajalein Poland UCT
              Antarctica Egypt GMT+0 leap-seconds.list Portugal Universal
              Arctic Eire Greenwich Libya posix US
              Asia EST Hongkong localtime posixrules UTC
              Atlantic EST5EDT HST MET PRC WET
              Australia Etc Iceland Mexico PST8PDT W-SU
              Brazil Europe Indian MST right zone1970.tab
              Canada Factory Iran MST7MDT ROC zone.tab
              CET GB iso3166.tab Navajo ROK Zulu
              Chile GB-Eire Israel NZ Singapore
              CST6CDT GMT Jamaica NZ-CHAT SystemV


              The time zone for EDT is "EST5EDT". The output of TZ="EST5EDT" date as of 10 May 2019 02:11:26 UTC:



              Thu May 9 22:11:26 EDT 2019


              Or use city's name where EDT is used. Examples: America/Kentucky/Louisville, America/Kentucky/Monticello, America/New_York, Canada/Eastern, etc.



              Why EDT is EST5EDT?



              In short, it is a standard. Time zones are written like Timezone-Offset. Here - is minus or it can be said for time zones which are ahead of UTC are written like Timezone-Offset and for time zones that are behind UTC, it is written as TimezoneOffset. If the time zone has a pretty name like Eastern Standard Time, it can be written as EST or EST5. Both will produce same results.



              Now, Daylight Saving Time (DST) isn't observed everywhere (for example, India). For time zones where it is observed, time zones are written as Timezone-OffsetTimezoneDST, example: EET-2EETDST (Cyprus) but if DST has a fancy name like BST (British Summer Time), it is written as Timezone-OffsetFancy_name, i.e. GMT0BST. Similary, EDT is EST5EDT. On this Oracle document you can see all standardized time zones.






              share|improve this answer





























                11














                date command doesn't know "EDT" timezone. If a timezone which isn't supported is passed in TZ the output will indeed show with entered time zone but time shown will be UTC.



                Supported time zones are listed in /usr/share/zoneinfo/. As of now time zones that can be used as a value for "TZ" are:



                Africa Cuba GMT0 Japan Pacific Turkey
                America EET GMT-0 Kwajalein Poland UCT
                Antarctica Egypt GMT+0 leap-seconds.list Portugal Universal
                Arctic Eire Greenwich Libya posix US
                Asia EST Hongkong localtime posixrules UTC
                Atlantic EST5EDT HST MET PRC WET
                Australia Etc Iceland Mexico PST8PDT W-SU
                Brazil Europe Indian MST right zone1970.tab
                Canada Factory Iran MST7MDT ROC zone.tab
                CET GB iso3166.tab Navajo ROK Zulu
                Chile GB-Eire Israel NZ Singapore
                CST6CDT GMT Jamaica NZ-CHAT SystemV


                The time zone for EDT is "EST5EDT". The output of TZ="EST5EDT" date as of 10 May 2019 02:11:26 UTC:



                Thu May 9 22:11:26 EDT 2019


                Or use city's name where EDT is used. Examples: America/Kentucky/Louisville, America/Kentucky/Monticello, America/New_York, Canada/Eastern, etc.



                Why EDT is EST5EDT?



                In short, it is a standard. Time zones are written like Timezone-Offset. Here - is minus or it can be said for time zones which are ahead of UTC are written like Timezone-Offset and for time zones that are behind UTC, it is written as TimezoneOffset. If the time zone has a pretty name like Eastern Standard Time, it can be written as EST or EST5. Both will produce same results.



                Now, Daylight Saving Time (DST) isn't observed everywhere (for example, India). For time zones where it is observed, time zones are written as Timezone-OffsetTimezoneDST, example: EET-2EETDST (Cyprus) but if DST has a fancy name like BST (British Summer Time), it is written as Timezone-OffsetFancy_name, i.e. GMT0BST. Similary, EDT is EST5EDT. On this Oracle document you can see all standardized time zones.






                share|improve this answer



























                  11












                  11








                  11







                  date command doesn't know "EDT" timezone. If a timezone which isn't supported is passed in TZ the output will indeed show with entered time zone but time shown will be UTC.



                  Supported time zones are listed in /usr/share/zoneinfo/. As of now time zones that can be used as a value for "TZ" are:



                  Africa Cuba GMT0 Japan Pacific Turkey
                  America EET GMT-0 Kwajalein Poland UCT
                  Antarctica Egypt GMT+0 leap-seconds.list Portugal Universal
                  Arctic Eire Greenwich Libya posix US
                  Asia EST Hongkong localtime posixrules UTC
                  Atlantic EST5EDT HST MET PRC WET
                  Australia Etc Iceland Mexico PST8PDT W-SU
                  Brazil Europe Indian MST right zone1970.tab
                  Canada Factory Iran MST7MDT ROC zone.tab
                  CET GB iso3166.tab Navajo ROK Zulu
                  Chile GB-Eire Israel NZ Singapore
                  CST6CDT GMT Jamaica NZ-CHAT SystemV


                  The time zone for EDT is "EST5EDT". The output of TZ="EST5EDT" date as of 10 May 2019 02:11:26 UTC:



                  Thu May 9 22:11:26 EDT 2019


                  Or use city's name where EDT is used. Examples: America/Kentucky/Louisville, America/Kentucky/Monticello, America/New_York, Canada/Eastern, etc.



                  Why EDT is EST5EDT?



                  In short, it is a standard. Time zones are written like Timezone-Offset. Here - is minus or it can be said for time zones which are ahead of UTC are written like Timezone-Offset and for time zones that are behind UTC, it is written as TimezoneOffset. If the time zone has a pretty name like Eastern Standard Time, it can be written as EST or EST5. Both will produce same results.



                  Now, Daylight Saving Time (DST) isn't observed everywhere (for example, India). For time zones where it is observed, time zones are written as Timezone-OffsetTimezoneDST, example: EET-2EETDST (Cyprus) but if DST has a fancy name like BST (British Summer Time), it is written as Timezone-OffsetFancy_name, i.e. GMT0BST. Similary, EDT is EST5EDT. On this Oracle document you can see all standardized time zones.






                  share|improve this answer















                  date command doesn't know "EDT" timezone. If a timezone which isn't supported is passed in TZ the output will indeed show with entered time zone but time shown will be UTC.



                  Supported time zones are listed in /usr/share/zoneinfo/. As of now time zones that can be used as a value for "TZ" are:



                  Africa Cuba GMT0 Japan Pacific Turkey
                  America EET GMT-0 Kwajalein Poland UCT
                  Antarctica Egypt GMT+0 leap-seconds.list Portugal Universal
                  Arctic Eire Greenwich Libya posix US
                  Asia EST Hongkong localtime posixrules UTC
                  Atlantic EST5EDT HST MET PRC WET
                  Australia Etc Iceland Mexico PST8PDT W-SU
                  Brazil Europe Indian MST right zone1970.tab
                  Canada Factory Iran MST7MDT ROC zone.tab
                  CET GB iso3166.tab Navajo ROK Zulu
                  Chile GB-Eire Israel NZ Singapore
                  CST6CDT GMT Jamaica NZ-CHAT SystemV


                  The time zone for EDT is "EST5EDT". The output of TZ="EST5EDT" date as of 10 May 2019 02:11:26 UTC:



                  Thu May 9 22:11:26 EDT 2019


                  Or use city's name where EDT is used. Examples: America/Kentucky/Louisville, America/Kentucky/Monticello, America/New_York, Canada/Eastern, etc.



                  Why EDT is EST5EDT?



                  In short, it is a standard. Time zones are written like Timezone-Offset. Here - is minus or it can be said for time zones which are ahead of UTC are written like Timezone-Offset and for time zones that are behind UTC, it is written as TimezoneOffset. If the time zone has a pretty name like Eastern Standard Time, it can be written as EST or EST5. Both will produce same results.



                  Now, Daylight Saving Time (DST) isn't observed everywhere (for example, India). For time zones where it is observed, time zones are written as Timezone-OffsetTimezoneDST, example: EET-2EETDST (Cyprus) but if DST has a fancy name like BST (British Summer Time), it is written as Timezone-OffsetFancy_name, i.e. GMT0BST. Similary, EDT is EST5EDT. On this Oracle document you can see all standardized time zones.







                  share|improve this answer














                  share|improve this answer



                  share|improve this answer








                  edited May 10 at 12:46

























                  answered May 10 at 2:12









                  KulfyKulfy

                  6,11272451




                  6,11272451























                      9














                      EDT is ambiguous when considered internationally. You can get the time you are seeking by doing



                      $ TZ="America/New_York" date
                      Thu May 9 22:11:16 EDT 2019





                      share|improve this answer



























                        9














                        EDT is ambiguous when considered internationally. You can get the time you are seeking by doing



                        $ TZ="America/New_York" date
                        Thu May 9 22:11:16 EDT 2019





                        share|improve this answer

























                          9












                          9








                          9







                          EDT is ambiguous when considered internationally. You can get the time you are seeking by doing



                          $ TZ="America/New_York" date
                          Thu May 9 22:11:16 EDT 2019





                          share|improve this answer













                          EDT is ambiguous when considered internationally. You can get the time you are seeking by doing



                          $ TZ="America/New_York" date
                          Thu May 9 22:11:16 EDT 2019






                          share|improve this answer












                          share|improve this answer



                          share|improve this answer










                          answered May 10 at 2:12









                          chickschicks

                          406615




                          406615



























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