Re: convert date time
On Fri, Aug 21, 2009 at 11:44 PM, Ronn Rossronn.r...@gmail.com wrote: I'm new to python and I'm getting a date time from a field in the database that looks like this: 8/2/2009 8:36:16 AM (UTC) I want to split it into two fields one with the date formatted like this: -MM-DD 2009-08-02 and the time to be 24 hour or military time. How every you call it. Similar to this: 15:22:00 I found it easy to truncate off the (UTC), but having trouble converting the date. Can someone point me in the right direction? datetime.datetime.strptime() will give you a datetime object, which you can then format in a wide variety of ways using its strftime() method. Doesn't work with dates earlier than 1900, I believe. -- kushal -- http://mail.python.org/mailman/listinfo/python-list
Re: convert date time
On Aug 22, 5:11 pm, Kushal Kumaran kushal.kumaran+pyt...@gmail.com wrote: On Fri, Aug 21, 2009 at 11:44 PM, Ronn Rossronn.r...@gmail.com wrote: I'm new to python and I'm getting a date time from a field in the database that looks like this: 8/2/2009 8:36:16 AM (UTC) datetime.datetime.strptime() will give you a datetime object, which you can then format in a wide variety of ways using its strftime() method. Doesn't work with dates earlier than 1900, I believe. The datetime module works from 0001-01-01 onwards; see http://docs.python.org/library/datetime.html#datetime.MINYEAR Other things worth mentioning: (1) datetime.datetime.strptime() was introduced in Python 2.5; for Python 2.3 and 2.4, use time.strptime() [which may not like years before 1970] followed by datetime.datetime() (2) as the input has 12-hour clock plus AM/PM, ensure that you use %I instead of %H for the hour component; %H won't do what you expect if your expectation is not based on reading the docs :-) -- http://mail.python.org/mailman/listinfo/python-list
Re: convert date time
On Fri, 21 Aug 2009 14:14:32 -0400 Ronn Ross ronn.r...@gmail.com wrote: I want to split it into two fields one with the date formatted like this: -MM-DD 2009-08-02 and the time to be 24 hour or military time. How every you call it. Similar to this: 15:22:00 I found it easy to truncate off the (UTC), but having trouble converting the date. Can someone point me in the right direction? You don't say what database you are using but you may find it simpler to do the conversion in your SELECT statement. For example, see http://www.postgresql.org/docs/8.3/static/functions-formatting.html for PostgreSQL formatting functions. -- D'Arcy J.M. Cain da...@druid.net | Democracy is three wolves http://www.druid.net/darcy/| and a sheep voting on +1 416 425 1212 (DoD#0082)(eNTP) | what's for dinner. -- http://mail.python.org/mailman/listinfo/python-list
Re: convert date time
On Fri, Aug 21, 2009 at 2:26 PM, D'Arcy J.M. Cain da...@druid.net wrote: On Fri, 21 Aug 2009 14:14:32 -0400 Ronn Ross ronn.r...@gmail.com wrote: I want to split it into two fields one with the date formatted like this: -MM-DD 2009-08-02 and the time to be 24 hour or military time. How every you call it. Similar to this: 15:22:00 I found it easy to truncate off the (UTC), but having trouble converting the date. Can someone point me in the right direction? You don't say what database you are using but you may find it simpler to do the conversion in your SELECT statement. For example, see http://www.postgresql.org/docs/8.3/static/functions-formatting.html for PostgreSQL formatting functions. -- D'Arcy J.M. Cain da...@druid.net | Democracy is three wolves http://www.druid.net/darcy/| and a sheep voting on +1 416 425 1212 (DoD#0082)(eNTP) | what's for dinner. I apologize I should have made it clear that this date is stored in the db as a string/varchar. The reason it is stored that way is before it's being read in from a text file where it is formatted that way. -- http://mail.python.org/mailman/listinfo/python-list
Re: convert date time
On Fri, 21 Aug 2009 14:43:55 -0400 Ronn Ross ronn.r...@gmail.com wrote: On Fri, Aug 21, 2009 at 2:26 PM, D'Arcy J.M. Cain da...@druid.net wrote: You don't say what database you are using but you may find it simpler to do the conversion in your SELECT statement. For example, see http://www.postgresql.org/docs/8.3/static/functions-formatting.html for PostgreSQL formatting functions. I apologize I should have made it clear that this date is stored in the db as a string/varchar. The reason it is stored that way is before it's being read in from a text file where it is formatted that way. You can still save it as a timestamp: SELECT '8/2/2009 8:36:16 AM (UTC)'::timestamp(0); timestamp - 2009-08-02 08:36:16 (1 row) Your input format is read into PostgreSQL time types directly. Same may be true of other databases. -- D'Arcy J.M. Cain da...@druid.net | Democracy is three wolves http://www.druid.net/darcy/| and a sheep voting on +1 416 425 1212 (DoD#0082)(eNTP) | what's for dinner. -- http://mail.python.org/mailman/listinfo/python-list
Convert date/time to unix timestamp?
Is there a simple way to set a date/time and convert it to a unix timestamp? After some googling I found the following: t = datetime.time(7,0,0) starttime = time.mktime(t.timetuple())+1e-6*t.microsecond That seems like very long-winded. Is there an easier way? I've read the docs on the datetime and time modules, but nothing's jumping out at me. -- http://mail.python.org/mailman/listinfo/python-list
Re: Convert date/time to unix timestamp?
Phillip B Oldham schrieb: Is there a simple way to set a date/time and convert it to a unix timestamp? After some googling I found the following: t = datetime.time(7,0,0) starttime = time.mktime(t.timetuple())+1e-6*t.microsecond That seems like very long-winded. Is there an easier way? I've read the docs on the datetime and time modules, but nothing's jumping out at me. The built-in function time.localtime() returns a 9-item tuple, e.g. (2009, 2, 10, 13, 29, 7, 1, 41, 0). time.mktime() converts this tuple to the seconds since the Epoch as a floating point number, int() converts it to an integer. int(time.mktime(time.localtime())) -- Thomas -- http://mail.python.org/mailman/listinfo/python-list
Re: Convert date/time to unix timestamp?
the python routines are a bit basic - you really have to think quite hard about what you are doing to get the right answer. in your case, you need to be clear what the timezone is for the datetime you are using. timezone info is optional (see the datetime documentation, where it talks about naive and aware objects). anyway, ignoring that, i think you need the very useful, but oddly located, calendar.timegm(). andrew Phillip B Oldham wrote: Is there a simple way to set a date/time and convert it to a unix timestamp? After some googling I found the following: t = datetime.time(7,0,0) starttime = time.mktime(t.timetuple())+1e-6*t.microsecond That seems like very long-winded. Is there an easier way? I've read the docs on the datetime and time modules, but nothing's jumping out at me. -- http://mail.python.org/mailman/listinfo/python-list -- http://mail.python.org/mailman/listinfo/python-list
Re: Convert date/time to unix timestamp?
On 2009-02-10 10:26, Phillip B Oldham wrote: Is there a simple way to set a date/time and convert it to a unix timestamp? After some googling I found the following: t = datetime.time(7,0,0) starttime = time.mktime(t.timetuple())+1e-6*t.microsecond That seems like very long-winded. Is there an easier way? I've read the docs on the datetime and time modules, but nothing's jumping out at me. from mx.DateTime import DateTime DateTime(2009,10,2,7,0,0).ticks() 1254459600.0 http://www.egenix.com/products/python/mxBase/mxDateTime/ -- Marc-Andre Lemburg eGenix.com Professional Python Services directly from the Source (#1, Feb 10 2009) Python/Zope Consulting and Support ...http://www.egenix.com/ mxODBC.Zope.Database.Adapter ... http://zope.egenix.com/ mxODBC, mxDateTime, mxTextTools ...http://python.egenix.com/ ::: Try our new mxODBC.Connect Python Database Interface for free ! eGenix.com Software, Skills and Services GmbH Pastor-Loeh-Str.48 D-40764 Langenfeld, Germany. CEO Dipl.-Math. Marc-Andre Lemburg Registered at Amtsgericht Duesseldorf: HRB 46611 http://www.egenix.com/company/contact/ -- http://mail.python.org/mailman/listinfo/python-list
