datetime

问题 I have a date column in a pandas DF with Julian dates. How can I convert these Julian dates to mm-dd-yyyy format. Sample data ORG CHAIN_NBR SEQ_NBR INT_STATUS BLOCK_CODE_1 DATA_BLOCK_CODE_1 0 523 1 0 A C 2012183 1 523 2 1 I A 2013025 2 521 3 1 A H 2007067 3 513 4 1 D H 2001046 4 513 5 1 8 I 2006075 I was using jd2gcal function but it's not working. I was also trying to write a code like this but of no use. for i,row in amna.iterrows(): amna['DATE_BLOCK_CODE_1'] = datetime.datetime.strptime

问题 This question already has answers here : Parsing a date that can be in several formats in python (4 answers) Closed 5 years ago . I am currently analyzing a dateset which contains so many different date types like 12/31/1991 December 10, 1980 September 25, 1970 2005-11-14 December 1990 October 12, 2005 1993-06-26 Is there a way to normalize all the date data into single format 'YYYY-MM-DD' ? I am familiar with datetime package in Python, but what's the best way to approach this problem so

问题 This question already has answers here : Parsing a date that can be in several formats in python (4 answers) Closed 5 years ago . I am currently analyzing a dateset which contains so many different date types like 12/31/1991 December 10, 1980 September 25, 1970 2005-11-14 December 1990 October 12, 2005 1993-06-26 Is there a way to normalize all the date data into single format 'YYYY-MM-DD' ? I am familiar with datetime package in Python, but what's the best way to approach this problem so

问题 This question already has answers here : Parsing a date that can be in several formats in python (4 answers) Closed 5 years ago . I am currently analyzing a dateset which contains so many different date types like 12/31/1991 December 10, 1980 September 25, 1970 2005-11-14 December 1990 October 12, 2005 1993-06-26 Is there a way to normalize all the date data into single format 'YYYY-MM-DD' ? I am familiar with datetime package in Python, but what's the best way to approach this problem so

问题 This question already has answers here : Parsing a date that can be in several formats in python (4 answers) Closed 5 years ago . I am currently analyzing a dateset which contains so many different date types like 12/31/1991 December 10, 1980 September 25, 1970 2005-11-14 December 1990 October 12, 2005 1993-06-26 Is there a way to normalize all the date data into single format 'YYYY-MM-DD' ? I am familiar with datetime package in Python, but what's the best way to approach this problem so

问题 $addhr = time() + (1 * 13 * 60 * 60); $curDateTimeMil= date("Y-m-d G:i:s",$addhr); echo $curDateTimeMil; This will echo 2010-08-27 16:21:31 . How can I get the date after 2 weeks? (sept 10) 回答1: $dateInTwoWeeks = strtotime('+2 weeks'); See strtotime(). Update #1 : Yes, this is the lazy way to do it. However, I do believe that the possible negative performance impact is countered by the positive effect on readability / understanding of the code. Should performance be an issue, one could switch

问题 Um, probably a really simple question, but I just noticed that I have no idea on how to convert DateTime.Now to the format YYMMDD, so for example today (5. November 2009) would be "091105". I know there are overloads to DateTime.Now.ToString() where you can pass in a format string, but I have not found the right format e.g. for short year format (09 instead of 2009). 回答1: DateTime.Now.ToString("yyMMdd") You may also find the following two posts on MSDN useful as they contain a lot of info

问题 I want to use class DateTime but PHPStorm says me that "Undefined class DateTime" and my PHP version is 5.5.9-1 . I'm using PHPStorm version 2016.1 and i'm working with Yii2 framework (if it'll give you any useful information). So how can i use with correct lint default PHP classes? 回答1: You need to use backslash \DateTime or add use DateTime; 来源： https://stackoverflow.com/questions/38562376/undefined-class-datetime-in-phpstorm

问题 I had to make a launcher script for my django app, and it seems it somehow switches the timezone to GMT (default being +2), and every datetime is two hours behind when using the script. What could be causing that? Here is the launcher script that I use: #!/usr/bin/env python import os import subprocess import shlex import time cwd = os.getcwd() p1 = subprocess.Popen(shlex.split("python manage.py runserver"), cwd=os.path.join(cwd, "drugsworld")) p2 = subprocess.Popen(shlex.split("python coffee

问题 This question already has answers here : Converting number representing a date in Excel to a Java Date object (5 answers) Closed last month . How convert 'excel date serial number'(i.e. 33257.415972222225) to DateTime(i.e. 19/01/1991 09:59:00) using Java? 回答1: You can also have a look at the Source code of Apache POI, method DateUtils#getLocalDateTime(double date, boolean use1904windowing, boolean roundSeconds) . This utility class offers more handy methods for working with Excel dates. 回答2: