How to Convert a Datetime to Date

How do I convert a datetime to date?

Use the date() method:

datetime.datetime.now().date()

Convert DateTime to Date in ES6

I also don't like using libraries for every tasks that can be easily done without library.Here are some of the in-build JS methods that you must give a try:

let date1=new Date("2020-06-16T02:55:08.151437Z").toDateString()console.log(date1)
let date2=new Date("2020-06-16T02:55:08.151437Z").toUTCString()console.log(date2)
let date3=new Date("2020-06-16T02:55:08.151437Z").toLocaleDateString()console.log(date3)
let date4=new Date("2020-06-16T02:55:08.151437Z").toLocaleDateString('en-US', {month: '2-digit',day: '2-digit',year: 'numeric'})console.log(date4)
let date5=new Date("2020-06-16T02:55:08.151437Z").toString()console.log(date5)
let date6=new Date("2020-06-16T02:55:08.151437Z").toLocaleString()console.log(date6)

How to convert a datetime to date in R, WITHOUT rounding the day?

Do your input dates include a timezone specification? If not, they are ambiguous and the rounding may be right or it may be wrong. If they do include a timezone specification, the lubridate package should handle them correctly.

I would advise against using tz = Sys.timezone() because that would make the interaction between input data and algorithm dependent on geography if your inputs don't include a timezone specification, so what works for you might not work for a different user in a different location.

convert datetime to date format dd/mm/yyyy

DateTime dt = DateTime.ParseExact(yourObject.ToString(), "MM/dd/yyyy hh:mm:ss tt", CultureInfo.InvariantCulture);

string s = dt.ToString("dd/M/yyyy", CultureInfo.InvariantCulture);

Convert string Jun 1 2005 1:33PM into datetime

datetime.strptime parses an input string in the user-specified format into a timezone-naive datetime object:

>>> from datetime import datetime
>>> datetime.strptime('Jun 1 2005  1:33PM', '%b %d %Y %I:%M%p')
datetime.datetime(2005, 6, 1, 13, 33)

To obtain a date object using an existing datetime object, convert it using .date():

>>> datetime.strptime('Jun 1 2005', '%b %d %Y').date()
date(2005, 6, 1)

Links:

strptime docs: Python 2, Python 3
strptime/strftime format string docs: Python 2, Python 3
strftime.org format string cheatsheet

Notes:

strptime = "string parse time"
strftime = "string format time"

How to return only the Date from a SQL Server DateTime datatype

SELECT DATEADD(dd, 0, DATEDIFF(dd, 0, @your_date))

for example

SELECT DATEADD(dd, 0, DATEDIFF(dd, 0, GETDATE()))

gives me

2008-09-22 00:00:00.000

Pros:

No varchar<->datetime conversions required
No need to think about locale

Converting DateTime Format to date

Use SimpleDateFormat class and you can convert it into any format you want.

String dateStr = "2014-01-09T09:33:20+0530"; 
SimpleDateFormat curFormater = new SimpleDateFormat("yyyy-MM-dd"); 
Date dateObj = curFormater.parse(dateStr); 

String newDateStr = curFormater.format(dateObj);