I have a date:
var date = new DateTime(2017,6,14,13,0,0);
and a textview to display it.
I'd like to display as '14/06/2017 13:00' when I set Date and time of the device to 'Use 24-hour format'
and '16/06/2017 1:00 PM' when I un-check 'Use 24-hour format'.
How can I do?
Thank you!
On Xamarin.Android it is a bit different than on Android as described in Muhammads answer:
var date = new DateTime(2017, 6, 14, 13, 0, 0);
var is24hour = Android.Text.Format.DateFormat.Is24HourFormat(this);
var format = is24hour ? "dd/MM/yyyy HH:mm" : "dd/MM/yyyy hh:mm tt";
var dtString = date.ToString(format);
You can use following code to convert you date object in specific format
SimpleDateFormat dateFormat;
if (android.text.format.DateFormat.is24HourFormat(YourActivityName.this)) {
// 24 hour format
dateFormat = new SimpleDateFormat("dd/MM/yyyy hh:mm");
}
else
{
// 12 hour format
dateFormat = new SimpleDateFormat("dd/MM/yyyy hh:mm a");
}
String newDate= dateFormat.format(date);
myTextView.setText(newDate);
Related
I am using the same format "yyyyMM" in SimpleDateFormat and DateTimeFormatter. I have set the leniency in both formatters.
Though, SimpleDateFormat is able to parse "2019 02" but not DateTimeFormatter. I have tried setting multiple formatters but no luck.
It must be a simple way but I am not able to figure it own. Does any one know how to restore the behavior with DateTimeFormatter?
String dateString = "2018-11";
String format = "yyyyMM";
SimpleDateFormat simpleDateFormat = new SimpleDateFormat(format);
simpleDateFormat.setLenient(true);
try {
Date parse = simpleDateFormat.parse(dateString);
System.out.println(parse);
System.out.println(format + ":parsed: true : java7");
} catch (ParseException e) {
System.out.println(format + ":parsed: false : java7");
}
DateTimeFormatter formatter = DateTimeFormatter.ofPattern(format).withResolverStyle(ResolverStyle.LENIENT);
try {
TemporalAccessor parse = formatter.parse(dateString);
System.out.println(parse.toString());
System.out.println(format + ": parsed: true : java11");
} catch (Exception e) {
System.out.println(format + ":parsed: false : java11");
e.printStackTrace();
}
You could create a DateTimeFormatter with a complex pattern with a DateTimeFormatterBuilder:
For example to parse yyyyMM, yyyy-MM and yyyy MM you could use:
DateTimeFormatter formatter = new DateTimeFormatterBuilder()
.appendValue(ChronoField.YEAR_OF_ERA, 4)
.optionalStart().appendLiteral('-').optionalEnd()
.optionalStart().appendLiteral(' ').optionalEnd()
.appendValue(ChronoField.MONTH_OF_YEAR, 2)
.toFormatter();
But this format is also strict because the year and the month have a fixed width else the optional literals doesn't work.
You can add .parseDefaulting(ChronoField.DAY_OF_MONTH, 1) to simply parse a LocalDate.
How to change date format value inside
range: <span class="filter"></span>
to full date format
chart.filterPrinter(function(filters) {
var dateStart = new Date(dc.utils.printSingleValue(filters[0][0]));
var dateEnd = new Date(dc.utils.printSingleValue(filters[0][1]));
var formatTime = d3.timeFormat("%d-%B-%Y");
return formatTime(dateStart) +
' to ' + formatTime(dateEnd);
});
thanks to the community :)
When creating a new UILocalNotification and scheduling a notification, the time gets changed due to the timezone. I the date i set gets changed by UiLocalNotifcation to the timezone. which i don't want to happen
public static void RegisterLocalNotification(ServiceModel.Types.ParkingTicket parkingTicket)
{
if (parkingTicket == null || parkingTicket.ExpiringSoon) return;
var startDate = parkingTicket.UtcStart.ToLocalTime();
NSDate nsStartDate = startDate.AddMinutes(parkingTicket.Duration - 10).UtcDateTimeToNSDate();
var notification = new UILocalNotification
{
FireDate = nsStartDate,
TimeZone = null,
AlertAction = Resources.Strings.ExtendTicket,
AlertBody = string.Format
(Resources.Strings.FormattedExpiringMessage,
parkingTicket.TimeLeft.Description(false),
parkingTicket.Address,parkingTicket.Car.RegistrationNumber),
RepeatInterval = 0,
HasAction = true,
UserInfo = GetDictionaryFromParkingTicket(parkingTicket),
SoundName = UILocalNotification.DefaultSoundName,
ApplicationIconBadgeNumber = 1
};
UIApplication.SharedApplication.ScheduleLocalNotification(notification);
}
public static NSDate UtcDateTimeToNSDate(this DateTime utcDateTime)
{
var reference = new DateTime(2001, 1, 1, 0, 0, 0);
return NSDate.FromTimeIntervalSinceReferenceDate((utcDateTime - reference).TotalSeconds);
}
I have tried using TimeZone = NSTimeZone.LocalTimeZone.
You're converting a UTC date to a local date:
var startDate = parkingTicket.UtcStart.ToLocalTime ();
then you're treating the local date as a UTC date, thereby doing the conversion twice:
NSDate nsStartDate = startDate.AddMinutes(parkingTicket.Duration - 10).UtcDateTimeToNSDate();
Just do this instead:
var startDate = parkingTicket.UtcStart;
var nsStartDate = (NSDate) startDate.AddMinutes (parkingTicket.Duration - 10);
The explicit NSDate conversion will do the right thing.
I'm using a Kendo DateTimePicker in my application.
The value I get from it in my application is
Wed Aug 13 2014 00:00:00 GMT+0200 (Romance Daylight Time)
I can't parse this to a DateTime. I get a "String was not recognized as a valid DateTime." error.
How can I set the format of the date I get from the DateTimePicker?? Is there an option in Kendo DateTimePicker??t
If you Need to Change the Date that you get from your application you can do as below
var dateobj=kendo.parseDate("Wed Aug 13 2014 00:00:00 GMT+0200 (Romance Daylight Time)", "yyyy-MM-dd h:mm:ss tt");
var datestring = kendo.toString(dateobj, "MM-dd-yyyy h:mm:ss tt");
kendo.parseDate() will Parse the Date to a Date Object and kendo.toString() will format the date to a string
If you need to convert the date you get from the Datepicker Do this
var datepicker = $("#datepicker").data("kendoDatePicker");
var value = datepicker.value();
kendo.toString(value,"dd/MM/YYYY")
IF you need to convert Datepicker date to the Sever Date
var datepicker = $("#datepicker").data("kendoDatePicker");
var value = datepicker.value();
value.toUTCString();
Here what I have used:
var dateobj = kendo.parseDate("Wed Aug 13 2014 00:00:00 GMT+0200 (Romance Daylight Time)");
var datestring = kendo.toString(dateobj, "MM-dd-yyyy h:mm:ss tt");
I created a custom binder which I use in place of the "VALUE" data-bind property
kendo.data.binders.widget.shortdate = kendo.data.Binder.extend({
init: function (widget, bindings, options) {
kendo.data.Binder.fn.init.call(this, widget.element[0], bindings, options);
var that = this;
$(widget.element).on("change", function () {
that.change();
});
},
refresh: function () {
var path = this.bindings.shortdate.path,
source = this.bindings.shortdate.source,
value = source.get(path);
this.bindings["shortdate"].set(value);
},
change: function () {
var formatedValue = this.element.value,
value = kendo.toString(new Date(formatedValue), "d");
if (value) {
this.bindings["shortdate"].set(value);
}
}
});
you can also try this
entity.ExpiredDate = ParseDate(model.ExpiredDate);
private static DateTime ParseDate(string input)
{
return DateTime.ParseExact(input, formats, CultureInfo.InvariantCulture, DateTimeStyles.None);
}
private static string[] formats = new string[]
{
"MM/dd/yyyy HH:mm:ss tt",
"MM/dd/yyyy HH:mm:ss",
"M/dd/yyyy H:mm:ss tt",
"M/dd/yyyy H:mm:ss" ,
"MM/dd/yyyy hh:mm tt"
};
You can also see this
If you are binding the grid using the kendo API, you can use .Format("0:d").
Here is the link where you can find meaning of standard and custom formats-
Date formatting
Here is one example using custom formatting
columns.Bound(model => model.CreatedOn).Format("{0:dd.MM.yyyy - HH:mm:ss}");
It result in this in 24 hour format: 20.07.2016 - 11:01:23.
How do I convert a DateTime from the local timezone returned by DateTime.Now to another timezone than Utc. On desktop we have the TimeZoneInfo.ConvertTimeBySystemTimeZoneId(), but it's not available on windows phone!
This java snippet shows roughtly what I want to do
SimpleDateFormat format = new SimpleDateFormat("EEE, dd MMM yyyy HH:mm:ss z", Locale.US);
TimeZone tz = TimeZone.getDefault();
format.setTimeZone(TimeZone.getTimeZone("GMT"));
str = format.format(new Date());
This is not possible to do using the system libraries as there is no way to create TimeZoneInfo objects other than local and utc. They have also sealed the class.
You can however use this simple library to enable conversion to non-local time zones.
https://nuget.org/packages/WinRTTimeZones
Use it like this:
using TimeZones;
public void ConvertTime()
{
// Get the time zone we want
var tz = TimeZoneService.FindSystemTimeZoneById("Central Standard Time");
var dt = new DateTime(1990, 7, 1, 12, 0, 0, DateTimeKind.Utc);
// This time will be central time
var local = tz.ConvertTime(dt);
}
When the DateTime is converted it is an easy exercise to format it as you want. I recommend to format the date in the local format (not the local timezone) to make easy for the user to understand the date.
Use it like this:
public String getNationTime(String Zone)
{
DateTime todayutc = DateTime.UtcNow;
string todaydate = todayutc.ToShortDateString();
string todaytime = todayutc.TimeOfDay.ToString().Split('.')[0];
Zone = Zone.Replace("GMT", "");
if (Zone.Length == 0)
return todaytime;
int zoneHour = int.Parse(Zone.Split(':')[0]);
int zoneMin = int.Parse(Zone.Split(':')[1]);
TimeSpan diff = new TimeSpan(zoneHour, zoneMin, 00);
todayutc = todayutc.Add(diff);
return todayutc.TimeOfDay.ToString().Split('.')[0];
}