I have been struggling with this even after doing so much of research on such a simple thing, so I need some help here.
I need to pass current date in date data type only in 'yyyy-MM-dd' format. SimpleDateFormat converts current date to string type and while trying to parse though it gets converted to Date type but changes the format.
I need currentDate in the format 'yyyy-MM-dd' of Date Type.
if(!session.dtfromDate && !session.dttoDate)
eq("startDate", currentDate)
I have managed to figure out a solutions to this. First got my desired format which obviously converted it to a String and then parsed this to a Date. It has worked perfectly fine.
SimpleDateFormat nsdf = new SimpleDateFormat('yyyy-MM-dd')
String currentDate = new SimpleDateFormat('yyyy-MM-dd').format(new Date());
Date newDate = (Date)nsdf.parse(currentDate)
if(!session.dtfromDate && !session.dttoDate)
eq("startDate", newDate)
Related
I am getting date and time from store. In data base its look like this
Need to know how can I show this as DD/MM/YY
I am trying to do like this
String timeString = snapshot.data[index]['lastupdate'].toString();
DateTime date = DateTime.parse(timeString);
print(DateFormat('yyyy-MM-dd').format(date));
Its showing error of Invalid date format
Try like this your lastupdate date is not convertime inDate thats why its showing error
DateTime date = DateTime.parse(snapshot.data[index]['lastupdate'].toDate().toString());
print(DateFormat('dd-MMM-yyy').format(date));
Use function to get date from Timestamp like this:
readDate(Timestamp dateTime) {
DateTime date = DateTime.parse(dateTime.toDate().toString());
// add DateFormat What you want. Look at the below comment example
//String formatedDate = DateFormat('dd-MMM-yyy').format(date);
String formatedDate = DateFormat.yMMMMd().format(date);
return formatedDate;
}
Use the function when you want it.
For example:
Text(readDOB(streamSnapshot.data!["dob"]))
For this you should install intl package. read
I have a component that uses a datepicker. The datepicker needs a dateFormat property that fits the momentjs pattern, for example 'DD.MM.YYYY' or 'MM/DD/YYYY'.
The date formatting is handled by react-intl. This works fine when converting from a date to a string (via formatDate). However, I need to retrieve the pattern as described above.
My goal is to do something like
dateFormat = this.props.intl.extractDateFormat() // returns 'DD.MM.YYYY'
I have found this similar question, but the only answer relies on parsing the string, which I cannot do, because I do not know whether Day or Month will come first in the formatted date.
If it is possible to convert this string to a date and somehow retrieve the format from momentjs, that would also be a good solution.
I was able to get the date format from react-intl. To do this, I defined an example date and had it formatted by react-intl, and then parsed the format by referring to the original string.
My component which is exported as injectIntl(Component) has this method:
deriveDateFormat = () => {
const isoString = '2018-09-25' // example date!
const intlString = this.formatDate(isoString) // generate a formatted date
const dateParts = isoString.split('-') // prepare to replace with pattern parts
return intlString
.replace(dateParts[2], 'DD')
.replace(dateParts[1], 'MM')
.replace(dateParts[0], 'YYYY')
}
The date will e.g. be formatted to '09/25/2018', and this function would return 'MM/DD/YYYY', a format which can be used by Moment.js.
This function only works if you know that the month and day will always be displayed with two digits. It would fail if the format is something like 9/25/2018.
I have not found a way to extract the date format from react-intl directly.
With apex, I pass a string like:
2017-02-05T01:44:00.000Z
to an apex function from javascript, however, when attempting to turn it into a datetime, it gives me invalid date/time error. I can create a date with it like
date newdate = date.valueOf(dateString);
but if I do datetime newdate = datetime.valueOf(dateString) I get the error. I don't get why it sees the string as incorrectly formatted to give invalid date/time. When I create just a date instead of datetime, I lose the time and it sets it to 00:00:00.
Thank you to anyone with some insight on how to create the datetime in apex! I have been trying to find the apex format and from what I see. I can't understand why it thinks this is invalid.
Try this.
String inpputString = '2017-02-05T01:44:00.000Z';
DateTime resultDateTime = DateTime.ValueofGmt(inpputString.replace('T', ' '));
System.Debug('resultDateTime>> '+resultDateTime);
Output:
10:10:41:011 USER_DEBUG [4]|DEBUG|resultDateTime>> 2017-02-05 01:44:00
This question is similar to How to parse ZonedDateTime with default zone? but addinitional condition.
I have a string param that represent a date in UK format: "3/6/09". It doesn't contain time, only date. But may contain it and even time zone.
And I want to parse it to ZonedDateTime.
public static ZonedDateTime parse(String value) {
DateTimeFormatter formatter = DateTimeFormatter.ofLocalizedDateTime(SHORT).withLocale(Locale.UK).withZone(ZoneId.systemDefault());
TemporalAccessor temporalAccessor = formatter.parseBest(value, ZonedDateTime::from, LocalDateTime::from, LocalDate::from);
if (temporalAccessor instanceof ZonedDateTime) {
return ((ZonedDateTime) temporalAccessor);
}
if (temporalAccessor instanceof LocalDateTime) {
return ((LocalDateTime) temporalAccessor).atZone(ZoneId.systemDefault());
}
return ((LocalDate) temporalAccessor).atStartOfDay(ZoneId.systemDefault());
}
But, it fails with exception:
java.time.format.DateTimeParseException: Text '3/6/2009' could not be parsed at index 6
It's a bug for me, or isn't?
In my opinion is not a bug. Your approach is flawed.
First of all you are returning a ZonedDateTime so it is expected that the String contains full date, time and zone information. The string "3/6/09" should be parsed to a LocalDate.
Second, you are delegating a runtime detection of format to the library. Again, you should be parsing/formatting an expected format. Your application should know wether is expecting a full date & time or a partial (only date or only time).
Anyway you will have more luck detecting the format and then using different parsing methods.
Only local date:
DateTimeFormatter
.ofLocalizedDate(FormatStyle.SHORT)
.parse(value, LocalDate::from)`
Zoned date and time:
DateTimeFormatter
.ofLocalizedDateTime(FormatStyle.SHORT, FormatStyle.SHORT)
.parse(value, ZonedDateTime::from)`
The format used can be seen using the getLocalizedDateTimePattern() method:
String fmt = DateTimeFormatterBuilder.getLocalizedDateTimePattern(
FormatStyle.SHORT, FormatStyle.SHORT, IsoChronology.INSTANCE, Locale.UK);
The result is "dd/MM/yy HH:mm".
As such, the format is expecting both a date and a time with a space separator, so that is what must be provided.
In addition, the format/parse expects there to be two digits for the day-of-month and two digits for the month-of-year. Thus, you would need to pass in "03/06/09 00:00" in order to get the result you expect, in which case you can parse directly to a LocalDateTime.
Alternatively, use ofLocalizedDate():
DateTimeFormatter formatter =
DateTimeFormatter.ofLocalizedDate(FormatStyle.SHORT).withLocale(Locale.UK);
LocalDate date = LocalDate.parse("03/06/99", formatter);
Note that the input must still have two digits for the day and month.
Alternatively, parse using a specific pattern that can handle the missing leading zeroes:
DateTimeFormatter formatter = DateTimeFormatter.ofPattern("d/M/yy");
LocalDate date = LocalDate.parse("3/6/99", formatter);
LocalDate date = LocalDate.parse("03/06/99", formatter);
// handles both "3/6/99" and "03/06/99"
Update: Lenient parsing also handles this case:
DateTimeFormatter formatter = new DateTimeFormatterBuilder()
.parseLenient().appendPattern("dd/MM/yy").toFormatter();
LocalDate date = LocalDate.parse("3/6/99", formatter);
LocalDate date = LocalDate.parse("03/06/99", formatter);
// handles both "3/6/99" and "03/06/99"
I have this
DateFormat dateFormat = new SimpleDateFormat("MM");
Date date = new Date();
I know the value as 10 but have got no idea how to print it out. How do I convert it to an int? If there even is a way?
date.getMonth()
it is deprecated - you should be using Calendar, but if you don't want to change, that'll do it. It is 0 indexed, so remember to change the resulting value appropriately.
Javadoc