From exactly now: long DAY_IN_MS = 1000 * 60 * 60 * 24; new Date(System.currentTimeMillis() – (7 * DAY_IN_MS)) From arbitrary Date date: new Date(date.getTime() – (7 * DAY_IN_MS)) Edit: As pointed out in the other answers, does not account for daylight savings time, if that’s a factor. Just to clarify that limitation I was … Read more
With JDK 8 date-time libraries in SDK has been enriched and you can use Duration or Period Interval from JodaTime will do.. A time interval represents a period of time between two instants. Intervals are inclusive of the start instant and exclusive of the end. The end instant is always greater than or equal to … Read more
A java.util.Date is not a java.sql.Date. It’s the other way around. A java.sql.Date is a java.util.Date. You’ll need to convert it to a java.sql.Date by using the constructor that takes a long that a java.util.Date can supply. java.sql.Date sqlDate = new java.sql.Date(utilDate.getTime());
To convert Java Date to Joda DateTime:- Date date = new Date(); DateTime dateTime = new DateTime(date); And vice versa:- Date dateNew = dateTime.toDate(); With TimeZone, if required:- DateTime dateTimeNew = new DateTime(date.getTime(), timeZone); Date dateTimeZone = dateTime.toDateTimeAtStartOfDay(timeZone).toDate();
All three of the lines you’ve shown will give the number of milliseconds since the unix epoch, which is a fixed point in time, not affected by your local time zone. You say “this time is not the UTC time” – I suspect you’ve actually diagnosed that incorrectly. I would suggest using epochconverter.com for this. … Read more
The issue for you is that you are using mm. You should use MM. MM is for month and mm is for minutes. Try with yyyy-MM-dd HH:mm Other approach: It can be as simple as this (other option is to use joda-time) static final long ONE_MINUTE_IN_MILLIS=60000;//millisecs Calendar date = Calendar.getInstance(); long t= date.getTimeInMillis(); Date afterAddingTenMins=new … Read more
You can convert ZonedDateTime to an instant, which you can use directly with Date. Date.from(java.time.ZonedDateTime.now().toInstant());
Java 8 and later With Java 8’s date time API change, Use LocalDate LocalDate date = LocalDate.now().minusDays(300); Similarly you can have LocalDate date = someLocalDateInstance.minusDays(300); Refer to https://stackoverflow.com/a/23885950/260990 for translation between java.util.Date <–> java.time.LocalDateTime Date in = new Date(); LocalDateTime ldt = LocalDateTime.ofInstant(in.toInstant(), ZoneId.systemDefault()); Date out = Date.from(ldt.atZone(ZoneId.systemDefault()).toInstant()); Java 7 and earlier Use Calendar‘s add() … Read more
Use DateFormat. For example, SimpleDateFormat isoFormat = new SimpleDateFormat(“yyyy-MM-dd’T’HH:mm:ss”); isoFormat.setTimeZone(TimeZone.getTimeZone(“UTC”)); Date date = isoFormat.parse(“2010-05-23T09:01:02”);
Convert a Date to a String using DateFormat#format method: String pattern = “MM/dd/yyyy HH:mm:ss”; // Create an instance of SimpleDateFormat used for formatting // the string representation of date according to the chosen pattern DateFormat df = new SimpleDateFormat(pattern); // Get the today date using Calendar object. Date today = Calendar.getInstance().getTime(); // Using DateFormat format … Read more