I have a DATETIME field in SQL. Its content is: 2012-08-26 13:00:00 I want to know how much tim开发者_StackOverflow社区e has passed from that date until now.
I have some very simple data in R that needs to have its date format changed: date midpoint 131/08/20110.8378
I\'m having trouble finding a way to parse the timezone out of strings like the following: \"Thu, 1 Sep 2011 09:06:03 -0400 (EDT)\"
I need to parse many different dates in many different formats. I am having trouble with the following and wondered if anyopne could explain why;
The specification for strptime: http://pubs.opengroup.org/onlinepubs/9699919799/functions/strptime.html
This will w开发者_Python百科ork in python 2.6 from datetime import datetime print (datetime.strptime(\'2008-12-31\', \"%Y-%m-%d\")- datetime.strptime(\'2007-04-30\',\"%Y-%m-%d\")).days
Compiling with gcc 4.4.3 on Ubuntu 10.04.2 x86_64 I get the following warning: warning: comparison between pointer and integer
I want to extract the minute from a specified time that exists in the 2nd column of a comma delimited file and perform a calculation. The format of the time is as follows:
time1 = \"2010-04-20 10:07:30\" time2 = \"2010-04-21 10:07:30\" How to convert the above from string to time stamp?
Where can I find a list of all legal time names for R function as.POSIXct? as.P开发者_运维知识库OSIXct(\"1970-01-01\",tz=\"CST\") generates a warning that \"CST\" (Central Standard Time) is unknown.T
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