how to convert string time to date object
var time_t = "09:56 AM" ;
this.audit_time = new Date(time_t);
//Error Invalid date
how do i correct it.please help me to solve this
You need also date part in your string (this will also work with PM):
var time_t = "09:56 AM" ;
var dt = new Date("1990-01-01 "+time_t);
console.log(dt);
dt = new Date(new Date().toISOString().slice(0,10) + " " + time_t);
console.log(dt);
try this
var time_t = "09:56 AM";
var timeArr = time_t.replace(" AM", "").split(":");
var d = new Date();
d.setMinutes(timeArr[1]);
d.setHours(timeArr[0]);
console.log(d);
Related
how can i extract time from datetime format.
my datetime format is given below.
var datetime =2000-01-01 01:00:00 UTC;
I only want to get the time 01.00 as 01
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/toLocaleTimeString
Date.prototype.toLocaleTimeString()
Returns a string with a locality sensitive representation of the time portion of this date based on system settings.
var time = datetime.toLocaleTimeString();
Update:
The new locales and options arguments let applications specify the
language whose formatting conventions should be used and customize the
behavior of the function. In older implementations, which ignore the
locales and options arguments, the locale used and the form of the
string returned are entirely implementation dependent.
// Depending on timezone, your results will vary
var event = new Date('August 19, 1975 23:15:30 GMT+00:00');
console.log(event.toLocaleTimeString('en-US'));
// expected output: 1:15:30 AM
console.log(event.toLocaleTimeString('it-IT'));
// expected output: 01:15:30
What about these methods
new Date().getHours()
new Date().getMinutes()
For example:
var d = new Date();
var n = d.getHours();
Edited
Return the hour, according to universal time:
new Date().getUTCHours()
Example:
var d = new Date();
var n = d.getUTCHours();
As an alternative if you want to get the time from a string -
var datetime ="2000-01-01 01:00:00 UTC";
var myTime = datetime.substr(11, 2);
alert(myTime) //01
with the moment.js library it works in this way:
var result = moment().format('hh');
alert(result);
<script src="https://cdnjs.cloudflare.com/ajax/libs/moment.js/2.17.1/moment.min.js"></script>
var datetime = ("2000-01-01 01:00:00 UTC");
var d1 = new Date(datetime);
var minute = d1.getUTCMinutes();
var hour = d1.getUTCHours();
if(minute > 0)
alert(hour+"."+minute);
else
alert(hour);
Demo
var date1 = new Date(1945,10,20, 17,30)
var date2 = new Date(1970,1,8, 12,00)
console.log(date1.getHours() - 8 + (date1.getMinutes()/60))
console.log(date2.getHours() - 8 + (date2.getMinutes()/60))
Use the following code:
var datetime = "2000-01-01 01:00:00 UTC";
var dt = new Date(datetime);
var hr = dt.getUTCHours();
if(hr > 12) {
hr -= 12;
}
alert(hr);
refer this link also.
I have done it! It looks like this:
console.log(new Date().toLocaleTimeString() + " " + new Date().getSeconds() + " seconds");
Assuming you have a Date object like
var datetime = new Date("2000-01-01 01:00:00 UTC"); // might not parse correctly in every engine
// or
var datetime = new Date(Date.UTC(2000, 0, 1, 1, 0, 0));
then use the getUTCHours method:
datetime.getUTCHours(); // 1
I hope you can find a solution here.
let preDateTime = new Date("2022-03-31 22:26:00");
let newTime = preDateTime.toLocaleTimeString('en-US');
let hour = newTime.split(":")[0];
let amPm = newTime.split(" ")[1];
let seconds = newTime.split(":")[2].replace(amPm,'');;
let noAmPm = newTime.replace(amPm,'');
let noAmPmSeconds = noAmPm.replace(":"+seconds,'');
let noSeconds = newTime.replace(":"+seconds,' ');
if(parseInt(hour)<9){
newTime = "0"+newTime;
noAmPm = "0"+noAmPm
noSeconds= "0"+noSeconds
noAmPmSeconds = "0"+noAmPmSeconds;
}
console.log(newTime); //10:26:00 PM
console.log(noAmPm); //10:26:00
console.log(noSeconds); //10:26 PM
console.log(noAmPmSeconds); //10:26
The new date(code) returns working value,Please Help me
var cdt = new Date();
dob = "15/01/1999";//From date picker
alert(dob);
var bdy = dob.split("/");
var by = bdy[2];
var bm = bdy[0];
var bd = bdy[1];
var dob = new Date(bd, bm, by);
alert(bd+","+bm+","+by);
alert(dob);
Date format changed for new date() function:
Values return by that function:
new Date() method takes three parameters on constructor.
The order of parameters is following: year,month and day.
Something like this: var date=new Date(1999,01,01).
var cdt = new Date();
dob = "15/01/1999";//From date picker
var bdy = dob.split("/");
var by = bdy[2];
var bm = bdy[1];
var bd = bdy[0];
var dob = new Date(by, (bm-1), bd);
console.log(bd+","+bm+","+by);
console.log(dob.toLocaleDateString());
You could use JavaScript ISO Dates format that is the format: yyyy-mm-dd, see following example please:
var dString = "15/01/1999";
console.log("From date picker", dString);
var bdy = dString.split("/").reverse().join("-")
var dob = new Date(bdy);
console.log("Javascript Date" , dob);
I hope it helps you, bye.
I'm trying to convert date format (DD-MM-YYYY) to (YYYY-MM-DD).i use this javascript code.it's doesn't work.
function calbill()
{
var edate=document.getElementById("edate").value; //03-11-2014
var myDate = new Date(edate);
console.log(myDate);
var d = myDate.getDate();
var m = myDate.getMonth();
m += 1;
var y = myDate.getFullYear();
var newdate=(y+ "-" + m + "-" + d);
alert (""+newdate); //It's display "NaN-NaN-NaN"
}
This should do the magic
var date = "03-11-2014";
var newdate = date.split("-").reverse().join("-");
Don't use the Date constructor to parse strings, it's extremely unreliable. If you just want to reformat a DD-MM-YYYY string to YYYY-MM-DD then just do that:
function reformatDateString(s) {
var b = s.split(/\D/);
return b.reverse().join('-');
}
console.log(reformatDateString('25-12-2014')); // 2014-12-25
You can use the following to convert DD-MM-YYYY to YYYY-MM-DD format using JavaScript:
var date = "24/09/2018";
date = date.split("/").reverse().join("/");
var date2 = "24-09-2018";
date2 = date.split("-").reverse().join("-");
console.log(date); //print "2018/09/24"
console.log(date2); //print "2018-09-24"
You just need to use return newdate:
function calbill()
{
var edate=document.getElementById("edate").value;
var myDate = new Date(edate);
console.log(myDate);
var d = myDate.getDate();
var m = myDate.getMonth();
m += 1;
var y = myDate.getFullYear();
var newdate=(y+ "-" + m + "-" + d);
return newdate;
}
demo
But I would simply recommend you to use like #Ehsan answered for you.
First yo have to add a moment js cdn which is easily available at here
then follow this code
moment(moment('13-01-2020', 'DD-MM-YYYY')).format('YYYY-MM-DD');
// will return 2020-01-13
how can i extract time from datetime format.
my datetime format is given below.
var datetime =2000-01-01 01:00:00 UTC;
I only want to get the time 01.00 as 01
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/toLocaleTimeString
Date.prototype.toLocaleTimeString()
Returns a string with a locality sensitive representation of the time portion of this date based on system settings.
var time = datetime.toLocaleTimeString();
Update:
The new locales and options arguments let applications specify the
language whose formatting conventions should be used and customize the
behavior of the function. In older implementations, which ignore the
locales and options arguments, the locale used and the form of the
string returned are entirely implementation dependent.
// Depending on timezone, your results will vary
var event = new Date('August 19, 1975 23:15:30 GMT+00:00');
console.log(event.toLocaleTimeString('en-US'));
// expected output: 1:15:30 AM
console.log(event.toLocaleTimeString('it-IT'));
// expected output: 01:15:30
What about these methods
new Date().getHours()
new Date().getMinutes()
For example:
var d = new Date();
var n = d.getHours();
Edited
Return the hour, according to universal time:
new Date().getUTCHours()
Example:
var d = new Date();
var n = d.getUTCHours();
As an alternative if you want to get the time from a string -
var datetime ="2000-01-01 01:00:00 UTC";
var myTime = datetime.substr(11, 2);
alert(myTime) //01
with the moment.js library it works in this way:
var result = moment().format('hh');
alert(result);
<script src="https://cdnjs.cloudflare.com/ajax/libs/moment.js/2.17.1/moment.min.js"></script>
var datetime = ("2000-01-01 01:00:00 UTC");
var d1 = new Date(datetime);
var minute = d1.getUTCMinutes();
var hour = d1.getUTCHours();
if(minute > 0)
alert(hour+"."+minute);
else
alert(hour);
Demo
var date1 = new Date(1945,10,20, 17,30)
var date2 = new Date(1970,1,8, 12,00)
console.log(date1.getHours() - 8 + (date1.getMinutes()/60))
console.log(date2.getHours() - 8 + (date2.getMinutes()/60))
Use the following code:
var datetime = "2000-01-01 01:00:00 UTC";
var dt = new Date(datetime);
var hr = dt.getUTCHours();
if(hr > 12) {
hr -= 12;
}
alert(hr);
refer this link also.
I have done it! It looks like this:
console.log(new Date().toLocaleTimeString() + " " + new Date().getSeconds() + " seconds");
Assuming you have a Date object like
var datetime = new Date("2000-01-01 01:00:00 UTC"); // might not parse correctly in every engine
// or
var datetime = new Date(Date.UTC(2000, 0, 1, 1, 0, 0));
then use the getUTCHours method:
datetime.getUTCHours(); // 1
I hope you can find a solution here.
let preDateTime = new Date("2022-03-31 22:26:00");
let newTime = preDateTime.toLocaleTimeString('en-US');
let hour = newTime.split(":")[0];
let amPm = newTime.split(" ")[1];
let seconds = newTime.split(":")[2].replace(amPm,'');;
let noAmPm = newTime.replace(amPm,'');
let noAmPmSeconds = noAmPm.replace(":"+seconds,'');
let noSeconds = newTime.replace(":"+seconds,' ');
if(parseInt(hour)<9){
newTime = "0"+newTime;
noAmPm = "0"+noAmPm
noSeconds= "0"+noSeconds
noAmPmSeconds = "0"+noAmPmSeconds;
}
console.log(newTime); //10:26:00 PM
console.log(noAmPm); //10:26:00
console.log(noSeconds); //10:26 PM
console.log(noAmPmSeconds); //10:26
I've got a string from an input field which I use for date with a format like this 25-02-2013. Now I want to compare the string with today's date. I want to know if the string is older or newer then today's date.
Any suggestions?
<script type="text/javascript">
var q = new Date();
var m = q.getMonth()+1;
var d = q.getDay();
var y = q.getFullYear();
var date = new Date(y,m,d);
mydate=new Date('2011-04-11');
console.log(date);
console.log(mydate)
if(date>mydate)
{
alert("greater");
}
else
{
alert("smaller")
}
</script>
Exact date comparsion and resolved bug from accepted answer
var q = new Date();
var m = q.getMonth();
var d = q.getDay();
var y = q.getFullYear();
var date = new Date(y,m,d);
mydate=new Date('2011-04-11');
console.log(date);
console.log(mydate)
if(date>mydate)
{
alert("greater");
}
else
{
alert("smaller")
}
You can use a simple comparison operator to see if a date is greater than another:
var today = new Date();
var jun3 = new Date("2016-06-03 0:00:00");
if(today > jun3){
// True if today is on or after June 3rd 2016
}else{
// Today is before June 3rd
}
The reason why I added 0:00:00 to the second variable is because without it, it'll compare to UTC (Greenwich) time, which may give you undesired results. If you set the time to 0, then it'll compare to the user's local midnight.
Using Javascript Date object will be easier for you. But as the Date object does not supports your format i think you have to parse your input string(eg: 25-02-2013) with '-' to get date month and year and then use Date object for comparison.
var x ='23-5-2010';
var a = x.split('-');
var date = new Date (a[2], a[1] - 1,a[0]);//using a[1]-1 since Date object has month from 0-11
var Today = new Date();
if (date > Today)
alert("great");
else
alert("less");
If your date input is in the format "25-02-2013", you can split the string into DD, MM and YYYY using the split() method:
var date_string="25-02-2013";
var day = parseInt(date_string.split("-")[0]);
var month= parseInt(date_string.split("-")[1]);
var year = parseInt(date_string.split("-")[2]);
The parseInt() function is used to make the string into an integer. The 3 variables can then be compared against properties of the Date() object.
The most significant points which needs to be remembered while doing date comparison
Both the dates should be in same format to get accurate result.
If you are using date time format and only wants to do date comparison then make sure you convert it in related format.
Here is the code which I used.
var dateNotifStr = oRecord.getData("dateNotif");
var today = new Date();
var todayDateFormatted = new Date(today.getFullYear(),today.getMonth(),today.getDate());
var dateNotif=new Date(dateNotifStr);
var dateNotifFormatted = new Date(dateNotif.getFullYear(),dateNotif.getMonth(),dateNotif.getDate());
Well, this can be optimized further but this should give you clear idea on what is required to make dates in uniform format.
Here's my solution, getDay() doesn't work like some people said because it grabs the day of the week and not the day of the month. So instead you should use getDate like I used below
var date = new Date();
var m = date.getMonth();
var d = date.getDate();
var y = date.getFullYear();
var todaysDate = formateDate(new Date(y,m,d));
console.log("Todays date is: " + todaysDate)
const formateDate = (assignmentDate) => {
const date = new Date(assignmentDate)
const formattedDate = date.toLocaleDateString("en-GB", {
day: "numeric",
month: "long",
year: "numeric"
})
return formattedDate
}
The function below is just to format the date into a legible format I could display to my users
<script type="text/javascript">
// If you set the timezone then your condition will work properly,
// otherwise there is a possibility of error,
// because timezone is a important part of date function
var todayDate = new Date().toLocaleString([], { timeZone: "Asia/Dhaka" }); //Today Date
var targetDate = new Date('2022-11-24').toLocaleString([], { timeZone: "Asia/Dhaka" });
console.log('todayDate ==', todayDate); // todayDate == 10/31/2022, 12:15:08 PM
console.log('targetDate ==', targetDate); // targetDate == 11/24/2022, 6:00:00 AM
if(targetDate >= todayDate)
{
console.log("Today's date is small");
}
else
{
console.log("Today's date is big")
}
</script>