'How to format DateTime in Flutter
I am trying to display the current DateTime in a Text widget after tapping on a button. The following works, but I'd like to change the format.
Current approach
DateTime now = DateTime.now();
currentTime = new DateTime(now.year, now.month, now.day, now.hour, now.minute);
Text('$currentTime'),
Result
YYYY-MM-JJ HH-MM:00.000
Question
How can I remove the :00.000 part?
Solution 1:[1]
You can use DateFormat from intl package.
import 'package:intl/intl.dart';
DateTime now = DateTime.now();
String formattedDate = DateFormat('yyyy-MM-dd – kk:mm').format(now);
Solution 2:[2]
Add intl package to your pubspec.yaml file.
import 'package:intl/intl.dart';
DateFormat dateFormat = DateFormat("yyyy-MM-dd HH:mm:ss");
Converting DateTime object to String
String string = dateFormat.format(DateTime.now());
Converting String to DateTime object
DateTime dateTime = dateFormat.parse("2019-07-19 8:40:23");
Solution 3:[3]
With this approach, there is no need to import any library.
DateTime now = DateTime.now();
String convertedDateTime = "${now.year.toString()}-${now.month.toString().padLeft(2,'0')}-${now.day.toString().padLeft(2,'0')} ${now.hour.toString().padLeft(2,'0')}-${now.minute.toString().padLeft(2,'0')}";
Output
2020-12-05 14:57
Solution 4:[4]
Try out this package, Jiffy, it also runs on top of Intl, but makes it easier using momentjs syntax. See below
import 'package:jiffy/jiffy.dart';
var now = Jiffy().format("yyyy-MM-dd HH:mm:ss");
You can also do the following
var a = Jiffy().yMMMMd; // October 18, 2019
And you can also pass in your DateTime object, A string and an array
var a = Jiffy(DateTime(2019, 10, 18)).yMMMMd; // October 18, 2019
var a = Jiffy("2019-10-18").yMMMMd; // October 18, 2019
var a = Jiffy([2019, 10, 18]).yMMMMd; // October 18, 2019
Solution 5:[5]
Here's my simple solution. That does not require any dependency.
However, the date will be in string format. If you want the time then change the substring values
print(new DateTime.now()
.toString()
.substring(0,10)
); // 2020-06-10
Solution 6:[6]
Use this function
todayDate() {
var now = new DateTime.now();
var formatter = new DateFormat('dd-MM-yyyy');
String formattedTime = DateFormat('kk:mm:a').format(now);
String formattedDate = formatter.format(now);
print(formattedTime);
print(formattedDate);
}
Output:
08:41:AM
21-12-2019
Solution 7:[7]
there is some change since the 0.16 so here how i did,
import in the pubspec.yaml
dependencies:
flutter:
sdk: flutter
intl: ^0.16.1
then use
txdate= DateTime.now()
DateFormat.yMMMd().format(txdate)
Solution 8:[8]
DateTime.now() is deprecated, use clock.now() instead:
import 'package:clock/clock.dart';
DateTime now = clock.now();
String formattedDate = DateFormat('yyyy-MM-dd – kk:mm').format(now);
Solution 9:[9]
You can also use this syntax. For YYYY-MM-JJ HH-MM:
var now = DateTime.now();
var month = now.month.toString().padLeft(2, '0');
var day = now.day.toString().padLeft(2, '0');
var text = '${now.year}-$month-$day ${now.hour}:${now.minute}';
Solution 10:[10]
What if user is US citizen but wants to see everything in 24hour format - then
showing 12/24 hour based of locale will not satisfy user
// getting system settings 12/24 h format
if (MediaQuery.of(context).alwaysUse24HourFormat){
timeFormat = new DateFormat("kk:mm", languageCode); //24h format
}
else{
timeFormat = new DateFormat("KK:mm a", languageCode); //12h format
}
//then use it:
'${timeFormat.format DateTime.now())}'
Solution 11:[11]
Use String split method to remove :00.000
var formatedTime = currentTime.toString().split(':')
Text(formatedTime[0])
======= OR USE BELOW code for YYYY-MM-DD HH:MM:SS format without using library ====
var stringList = DateTime.now().toIso8601String().split(new RegExp(r"[T\.]"));
var formatedDate = "${stringList[0]} ${stringList[1]}";
Solution 12:[12]
static String convertDateFormat(String dateTimeString, String oldFormat, String
newFormat) {
DateFormat newDateFormat = DateFormat(newFormat);
DateTime dateTime = DateFormat(oldFormat).parse(dateTimeString);
String selectedDate = newDateFormat.format(dateTime);
return selectedDate;
}
call this method this way
convertDateFormat(inputDate, "dd-mm-yyyy", "d MMM yyyy");
Solution 13:[13]
You cant format dates in dart ,so you require to use external packages ,I would recommend this article : https://www.geeksforgeeks.org/format-dates-in-flutter/
Solution 14:[14]
How about a simple extension method for DateTime. Run-time is probably not great, since we're iterating the string multiple times and iterating over each % format option. Could probably walk through once and replace % greedily.
extension DateTimeFormat on DateTime {
/// Supports the following, inspired by: https://linux.die.net/man/3/strptime
/// %Y: The year, including century (for example, 1991).
/// %m: The month number (1-12).
/// %d: The day of month (1-31).
/// %H: The hour (0-23).
/// %M: The minute (0-59).
/// %S: The second (0-59).
String format(String formatString) {
var hourString = hour.toString();
var dayString = day.toString();
var monthString = month.toString();
var minuteString = minute.toString();
var secondString = second.toString();
var yearString = year.toString();
var map = {
'%H': hourString.padLeft(3 - hourString.length, '0'), // the pad values here are the desired length + 1
'%d': dayString.padLeft(3 - dayString.length, '0'),
'%m': monthString.padLeft(3 - monthString.length, '0'),
'%M': minuteString.padLeft(3 - minuteString.length, '0'),
'%S': secondString.padLeft(3 - secondString.length, '0'),
'%Y': yearString.padLeft(5 - yearString.length, '0'),
};
return map.entries.fold(formatString, (acc, entry) => acc.replaceAll(entry.key, entry.value));
}
}
Usage:
print(DateTime(2021, 10, 16, 4, 4, 4, 4, 4).format('%Y-%m-%d-%H-%M-%S'));
// '2021-10-16-04-04-04'
Feel free to suggest changes.
Solution 15:[15]
The best and easiest way to convert a sting int Dateformat is,
print(DateTime.parse('2020-01-02')); // 2020-01-02 00:00:00.000
print(DateTime.parse('20200102')); // 2020-01-02 00:00:00.000
print(DateTime.parse('-12345-03-04')); // -12345-03-04 00:00:00.000
print(DateTime.parse('2020-01-02 07')); // 2020-01-02 07:00:00.000
print(DateTime.parse('2020-01-02T07')); // 2020-01-02 07:00:00.000
print(DateTime.parse('2020-01-02T07:12')); // 2020-01-02 07:12:00.000
print(DateTime.parse('2020-01-02T07:12:50')); // 2020-01-02 07:12:50.000
print(DateTime.parse('2020-01-02T07:12:50Z')); // 2020-01-02 07:12:50.000Z
print(DateTime.parse('2020-01-02T07:12:50+07')); // 2020-01-02 00:12:50.000Z
print(DateTime.parse('2020-01-02T07:12:50+0700')); // 2020-01-02 00:12:50.00
print(DateTime.parse('2020-01-02T07:12:50+07:00')); // 2020-01-02 00:12:50.00
Sources
This article follows the attribution requirements of Stack Overflow and is licensed under CC BY-SA 3.0.
Source: Stack Overflow
