datetime-format

来源： https://stackoverflow.com/questions/63605470/what-type-of-date-format-is-this-and-how-to-convert-it

来源： https://stackoverflow.com/questions/63605470/what-type-of-date-format-is-this-and-how-to-convert-it

来源： https://stackoverflow.com/questions/49561989/pandas-rounding-to-nearest-hour

来源： https://stackoverflow.com/questions/49561989/pandas-rounding-to-nearest-hour

问题 I am parsing datetime values as follows: df['actualDateTime'] = pd.to_datetime(df['actualDateTime']) How can I convert this datetime objects to milliseconds? I didn't see mention of milliseconds in the doc of to_datetime. Update (Based on feedback): This is the current version of the code that provides error TypeError: Cannot convert input to Timestamp . The column Date3 must contain milliseconds (as a numeric equivalent of a datetime object). import pandas as pd import time s1 = {'Date' : [

问题 I am having various date String and want to format in particular format using java String arr[] = {"Jul 02,2020 ","15-10-2015 10:20:56","2015/10/26 12:10:39","27-04-2016 10:22:56","April 7, 2020"}; Arrays.asList(arr).forEach(date->{ try { System.out.println(convertDate(date, "yyyy-MM-dd hh:mm:ss")); } catch (ParseException e) { // TODO Auto-generated catch block e.printStackTrace(); } }); public static String getDateString(String date,String patternStr) throws ParseException { if(StringUtils

问题 I am trying to create date time format for optional time part currently I implemented this import java.time.*; import java.time.format.DateTimeFormatter; import java.time.format.DateTimeParseException; import java.text.ParseException; /* Name of the class has to be "Main" only if the class is public. */ class Ideone { public static void main (String[] args) throws java.lang.Exception { System.out.println(Ideone.getDate("2017-07-01T00:00:00.0Z")); System.out.println(Ideone.getDate("2017-07

问题 I'm using the HTML5 datetime-local input type to try and get some datetime data into my database. The ModelForm class Meta: looks like the following: class Meta: model = ScheduleEntry fields = ['calendar', 'title', 'start', 'end', 'assets', 'users'] widgets = { 'calendar': forms.Select(attrs={ 'class': 'fom-control chosen-select' }), 'title': forms.TextInput(attrs={ 'class': 'form-control' }), 'start': forms.DateTimeInput(attrs={ 'type':'datetime-local', 'class':'form-control' }, format='%Y-

问题 How can I format a DateTime object to a string in the device default datetime format when running a PCL Xamarin.Forms project and my deployement targets include iOS, Android and Windows. The DateTime.ToShortString() doesn't work as per MSDN requirement according to this thread and this bug. Is there any Forms based solution or do I need to get it from platform specific projects? For Android, I can do the following from Native project using DI: String format = Settings.System.GetString(this

问题 How can I format a DateTime object to a string in the device default datetime format when running a PCL Xamarin.Forms project and my deployement targets include iOS, Android and Windows. The DateTime.ToShortString() doesn't work as per MSDN requirement according to this thread and this bug. Is there any Forms based solution or do I need to get it from platform specific projects? For Android, I can do the following from Native project using DI: String format = Settings.System.GetString(this