Convert CST to UTC












-3















How can I convert the CST to UTC by this code?



str(datetime.datetime.utcnow().strftime("%Y-%m-%dT%H:%M:%S")) + "Z" 


This is the predefined and my UI is in CST and API want to be in UTC. So, how can I convert CST to UTC using same code?










share|improve this question





























    -3















    How can I convert the CST to UTC by this code?



    str(datetime.datetime.utcnow().strftime("%Y-%m-%dT%H:%M:%S")) + "Z" 


    This is the predefined and my UI is in CST and API want to be in UTC. So, how can I convert CST to UTC using same code?










    share|improve this question



























      -3












      -3








      -3








      How can I convert the CST to UTC by this code?



      str(datetime.datetime.utcnow().strftime("%Y-%m-%dT%H:%M:%S")) + "Z" 


      This is the predefined and my UI is in CST and API want to be in UTC. So, how can I convert CST to UTC using same code?










      share|improve this question
















      How can I convert the CST to UTC by this code?



      str(datetime.datetime.utcnow().strftime("%Y-%m-%dT%H:%M:%S")) + "Z" 


      This is the predefined and my UI is in CST and API want to be in UTC. So, how can I convert CST to UTC using same code?







      python datetime






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      share|improve this question













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      edited Nov 13 '18 at 18:30









      Brad Solomon

      13.4k73482




      13.4k73482










      asked Nov 13 '18 at 17:37









      Srikanth PonnapatiSrikanth Ponnapati

      1




      1
























          1 Answer
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          One comment upfront: if you are actually using datetime.datetime.utcnow(), you don't need to do any conversion. That is the UTC time, though it is technically a naive datetime because it does not have a .tzinfo attribute attached. (And you also don't need to call str.)





          Otherwise, assuming that your input time is actually local-based (does not use .utcnow()), you can use time.timezone to get a timedelta. Here is an example from my system, which is EST:



          >>> import datetime
          >>> import time

          >>> localtime = datetime.datetime.now()
          >>> localtime
          datetime.datetime(2018, 11, 13, 13, 22, 54, 109529)
          >>> datetime.datetime.utcnow()
          datetime.datetime(2018, 11, 13, 18, 23, 3, 373213)

          >>> convrt = localtime + datetime.timedelta(
          ... seconds=time.timezone)
          >>>
          >>> convrt
          datetime.datetime(2018, 11, 13, 18, 22, 54, 109529)
          >>> convrt.replace(tzinfo=datetime.timezone.utc).isoformat()
          '2018-11-13T18:22:54.109529+00:00'


          Notice that .isoformat() uses the numeric offset. To get the name, use %Z:



          >>> convrt.replace(tzinfo=datetime.timezone.utc).strftime("%Y-%m-%dT%H:%M:%S%Z")
          '2018-11-13T18:22:54UTC'


          time.timezone is an offset of the local (non-DST) timezone, in seconds west of UTC. There's also time.altzone, which is offset of the local DST timezone (seconds west).






          share|improve this answer
























          • That's a good solution but I can't write my scripts in the python file. I've to use existed code. That is like I posted in the Question. I've to change only the code by adding the something like this: str(datetime.datetime.utcnow().strftime("%Y-%m-%dT%H:%M:%S.%f")[-3]) + "Z"

            – Srikanth Ponnapati
            Nov 13 '18 at 20:49













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          1 Answer
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          1 Answer
          1






          active

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          active

          oldest

          votes









          0














          One comment upfront: if you are actually using datetime.datetime.utcnow(), you don't need to do any conversion. That is the UTC time, though it is technically a naive datetime because it does not have a .tzinfo attribute attached. (And you also don't need to call str.)





          Otherwise, assuming that your input time is actually local-based (does not use .utcnow()), you can use time.timezone to get a timedelta. Here is an example from my system, which is EST:



          >>> import datetime
          >>> import time

          >>> localtime = datetime.datetime.now()
          >>> localtime
          datetime.datetime(2018, 11, 13, 13, 22, 54, 109529)
          >>> datetime.datetime.utcnow()
          datetime.datetime(2018, 11, 13, 18, 23, 3, 373213)

          >>> convrt = localtime + datetime.timedelta(
          ... seconds=time.timezone)
          >>>
          >>> convrt
          datetime.datetime(2018, 11, 13, 18, 22, 54, 109529)
          >>> convrt.replace(tzinfo=datetime.timezone.utc).isoformat()
          '2018-11-13T18:22:54.109529+00:00'


          Notice that .isoformat() uses the numeric offset. To get the name, use %Z:



          >>> convrt.replace(tzinfo=datetime.timezone.utc).strftime("%Y-%m-%dT%H:%M:%S%Z")
          '2018-11-13T18:22:54UTC'


          time.timezone is an offset of the local (non-DST) timezone, in seconds west of UTC. There's also time.altzone, which is offset of the local DST timezone (seconds west).






          share|improve this answer
























          • That's a good solution but I can't write my scripts in the python file. I've to use existed code. That is like I posted in the Question. I've to change only the code by adding the something like this: str(datetime.datetime.utcnow().strftime("%Y-%m-%dT%H:%M:%S.%f")[-3]) + "Z"

            – Srikanth Ponnapati
            Nov 13 '18 at 20:49


















          0














          One comment upfront: if you are actually using datetime.datetime.utcnow(), you don't need to do any conversion. That is the UTC time, though it is technically a naive datetime because it does not have a .tzinfo attribute attached. (And you also don't need to call str.)





          Otherwise, assuming that your input time is actually local-based (does not use .utcnow()), you can use time.timezone to get a timedelta. Here is an example from my system, which is EST:



          >>> import datetime
          >>> import time

          >>> localtime = datetime.datetime.now()
          >>> localtime
          datetime.datetime(2018, 11, 13, 13, 22, 54, 109529)
          >>> datetime.datetime.utcnow()
          datetime.datetime(2018, 11, 13, 18, 23, 3, 373213)

          >>> convrt = localtime + datetime.timedelta(
          ... seconds=time.timezone)
          >>>
          >>> convrt
          datetime.datetime(2018, 11, 13, 18, 22, 54, 109529)
          >>> convrt.replace(tzinfo=datetime.timezone.utc).isoformat()
          '2018-11-13T18:22:54.109529+00:00'


          Notice that .isoformat() uses the numeric offset. To get the name, use %Z:



          >>> convrt.replace(tzinfo=datetime.timezone.utc).strftime("%Y-%m-%dT%H:%M:%S%Z")
          '2018-11-13T18:22:54UTC'


          time.timezone is an offset of the local (non-DST) timezone, in seconds west of UTC. There's also time.altzone, which is offset of the local DST timezone (seconds west).






          share|improve this answer
























          • That's a good solution but I can't write my scripts in the python file. I've to use existed code. That is like I posted in the Question. I've to change only the code by adding the something like this: str(datetime.datetime.utcnow().strftime("%Y-%m-%dT%H:%M:%S.%f")[-3]) + "Z"

            – Srikanth Ponnapati
            Nov 13 '18 at 20:49
















          0












          0








          0







          One comment upfront: if you are actually using datetime.datetime.utcnow(), you don't need to do any conversion. That is the UTC time, though it is technically a naive datetime because it does not have a .tzinfo attribute attached. (And you also don't need to call str.)





          Otherwise, assuming that your input time is actually local-based (does not use .utcnow()), you can use time.timezone to get a timedelta. Here is an example from my system, which is EST:



          >>> import datetime
          >>> import time

          >>> localtime = datetime.datetime.now()
          >>> localtime
          datetime.datetime(2018, 11, 13, 13, 22, 54, 109529)
          >>> datetime.datetime.utcnow()
          datetime.datetime(2018, 11, 13, 18, 23, 3, 373213)

          >>> convrt = localtime + datetime.timedelta(
          ... seconds=time.timezone)
          >>>
          >>> convrt
          datetime.datetime(2018, 11, 13, 18, 22, 54, 109529)
          >>> convrt.replace(tzinfo=datetime.timezone.utc).isoformat()
          '2018-11-13T18:22:54.109529+00:00'


          Notice that .isoformat() uses the numeric offset. To get the name, use %Z:



          >>> convrt.replace(tzinfo=datetime.timezone.utc).strftime("%Y-%m-%dT%H:%M:%S%Z")
          '2018-11-13T18:22:54UTC'


          time.timezone is an offset of the local (non-DST) timezone, in seconds west of UTC. There's also time.altzone, which is offset of the local DST timezone (seconds west).






          share|improve this answer













          One comment upfront: if you are actually using datetime.datetime.utcnow(), you don't need to do any conversion. That is the UTC time, though it is technically a naive datetime because it does not have a .tzinfo attribute attached. (And you also don't need to call str.)





          Otherwise, assuming that your input time is actually local-based (does not use .utcnow()), you can use time.timezone to get a timedelta. Here is an example from my system, which is EST:



          >>> import datetime
          >>> import time

          >>> localtime = datetime.datetime.now()
          >>> localtime
          datetime.datetime(2018, 11, 13, 13, 22, 54, 109529)
          >>> datetime.datetime.utcnow()
          datetime.datetime(2018, 11, 13, 18, 23, 3, 373213)

          >>> convrt = localtime + datetime.timedelta(
          ... seconds=time.timezone)
          >>>
          >>> convrt
          datetime.datetime(2018, 11, 13, 18, 22, 54, 109529)
          >>> convrt.replace(tzinfo=datetime.timezone.utc).isoformat()
          '2018-11-13T18:22:54.109529+00:00'


          Notice that .isoformat() uses the numeric offset. To get the name, use %Z:



          >>> convrt.replace(tzinfo=datetime.timezone.utc).strftime("%Y-%m-%dT%H:%M:%S%Z")
          '2018-11-13T18:22:54UTC'


          time.timezone is an offset of the local (non-DST) timezone, in seconds west of UTC. There's also time.altzone, which is offset of the local DST timezone (seconds west).







          share|improve this answer












          share|improve this answer



          share|improve this answer










          answered Nov 13 '18 at 18:27









          Brad SolomonBrad Solomon

          13.4k73482




          13.4k73482













          • That's a good solution but I can't write my scripts in the python file. I've to use existed code. That is like I posted in the Question. I've to change only the code by adding the something like this: str(datetime.datetime.utcnow().strftime("%Y-%m-%dT%H:%M:%S.%f")[-3]) + "Z"

            – Srikanth Ponnapati
            Nov 13 '18 at 20:49





















          • That's a good solution but I can't write my scripts in the python file. I've to use existed code. That is like I posted in the Question. I've to change only the code by adding the something like this: str(datetime.datetime.utcnow().strftime("%Y-%m-%dT%H:%M:%S.%f")[-3]) + "Z"

            – Srikanth Ponnapati
            Nov 13 '18 at 20:49



















          That's a good solution but I can't write my scripts in the python file. I've to use existed code. That is like I posted in the Question. I've to change only the code by adding the something like this: str(datetime.datetime.utcnow().strftime("%Y-%m-%dT%H:%M:%S.%f")[-3]) + "Z"

          – Srikanth Ponnapati
          Nov 13 '18 at 20:49







          That's a good solution but I can't write my scripts in the python file. I've to use existed code. That is like I posted in the Question. I've to change only the code by adding the something like this: str(datetime.datetime.utcnow().strftime("%Y-%m-%dT%H:%M:%S.%f")[-3]) + "Z"

          – Srikanth Ponnapati
          Nov 13 '18 at 20:49




















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