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In Java, how do I get the difference in seconds between 2 dates?
(13 answers)
Java 8: Difference between two LocalDateTime in multiple units
(11 answers)
How to calculate time difference between two dates using LocalDateTime in Java 8?
(2 answers)
Closed 2 years ago.
I'm stuck between java.time.temporal.ChronoUnit and java.time.temporal.Temporal until. How do they work??
Look at the javadoc for ChronoUnit and TemporalUntit.
The ChronoUnit enum basically provides some standard TemporalUnits but other developers could implement other TemporalUnits.
For example, you can write the following code:
TemporalUnit u=ChronoUnit.DAYS;
but you can also create new TemporalUnits by extending ChronoUnit.
Related
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How to parse dates in multiple formats using SimpleDateFormat
(13 answers)
Java LocalDateTime.parse with millisecond precision but optional microsecond precision
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How to check validity of Date String?
(4 answers)
Closed 2 years ago.
There can be two different date time formats as shown below. The second variant has milliseconds time.
2020-09-07T16:15:42Z
2020-09-09T11:41:58.5152Z
Currently i am using this way to parse the date. Is there a way to specify a single format to account for both of these two cases?
def dateutc = (new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss.SSSS'Z'"))
dateutc.setTimeZone(TimeZone.getTimeZone("UTC"))
time = dateutc.parse(point.time.toString()).getTime()
Thanks for the help!
Please note i am using java 7.
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OffsetDateTime.now() requires API 26
(2 answers)
ZonedDateTime to Date before Java 8 in early Android
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cannot resolve symbol 'java.time.LocalDate' error in android studio
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Droid API 22+ options for Date/Duration (in Kotlin)?
(1 answer)
Closed 3 years ago.
I want to get the accurate current date and time for a zone in milliseconds, I found this method.
.....
Local Datetime localDateTime2=LocalDateTime.parse(timestamp,DateTimeFormatter.ofPattern("yyyyMMdd_HHmmss"));
long milliss=localDateTime2.atZone(ZoneId.systemDefault()).toInstant().toEpochMilli();
The above works fine but the code displayed requires api 26 and above. Is there a different method that supports lower apis achieving same result. Please help
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Is there a class in java.time comparable to the Joda-Time Interval?
(4 answers)
Closed 6 years ago.
Java 8 introduced a new Time & Date API, with classes like Period or Duration.
Now I'm looking for a class to represent date intervals, e.g. "from 4th August 2016 to 8th August 2016" and answer the question: do these intervals overlap. Period doesn't seem to satisfy this, since it works in an affine way, not knowing where the interval has started, only how long it takes.
Is there any Java 8 standard library class to suit my needs? Or do I have to write my own?
You could resolve the date down into a long and use an IntervalTree. Here's one I made earlier.
This question already has answers here:
Java string to date conversion
(17 answers)
Closed 7 years ago.
While writing a code for a java project I used date format "dd/mm/yyyy". But another colleague writing code for the same project used "dd/MM/yyyy" format and mismatch occurred. I also observed that database date format works fine with "dd/MM/yyyy", not with "dd/mm/yyyy".
So I need to know the difference between these two formats.
The difference can be found here https://docs.oracle.com/javase/7/docs/api/java/text/SimpleDateFormat.html
basically small m is minute bit M is month
This question already has answers here:
Calculate month difference in Joda Time
(3 answers)
Closed 8 years ago.
I have two dates date1 and date2, i need to get number of months between those two dates,
can any one help me to do.
int result = Months.monthsBetween(date1, date2).getValue();