![]() ![]() You may find some useful classes here such as Interval, YearWeek, YearQuarter, and more. This project is a proving ground for possible future additions to java.time. The ThreeTen-Extra project extends java.time with additional classes. For earlier Android, the ThreeTenABP project adapts ThreeTen-Backport (mentioned above).Later versions of Android bundle implementations of the java.time classes.Much of the java.time functionality is back-ported to Java 6 & 7 in ThreeTen-Backport.Java 9 adds some minor features and fixes.Part of the standard Java API with a bundled implementation.No need for strings nor java.sql.* classes. Using a JDBC driver compliant with JDBC 4.2 or later, you may exchange java.time objects directly with your database. And search Stack Overflow for many examples and explanations. The Joda-Time project, now in maintenance mode, advises migration to the java.time classes. ![]() These classes supplant the troublesome old legacy date-time classes such as, Calendar, & SimpleDateFormat. The java.time framework is built into Java 8 and later. long millis = instant.toEpochMilli() // Count of milliseconds since. Beware of possible data loss, as any microseconds or nanoseconds in the Instant will be ignored when reporting mere milliseconds. void: setDateFormatString( dfString) Sets the date format string. void: setCalendar( calendar) Sets the calendar. You can then ask for the count of milliseconds since the epoch reference of first moment of 1970 in UTC. propert圜hange(圜hangeEvent evt) Listens for a 'date' property change or a 'day' property change event from the JCalendar. Instant instant = zdt.toInstant() // Convert from a zoned value to a UTC value. The Instant class represents a moment on the timeline in UTC with a resolution of nanoseconds (up to nine (9) digits of a decimal fraction). But it seems to be requirement in your case.įirst we can extract a Instant, a moment in UTC. I generally recommend against tracking date-time as a count-from-epoch. ZonedDateTime zdt = ZonedDateTime.of( 2015, Month.JANUARY, 8, 7, 13, 0, 0, ZoneId.of( "Pacific/Auckland" ) ) ![]() You could use a combo factor method, alternatively. ZonedDateTime zdt = ZonedDateTime.of( ld, lt, z ) ZoneId z = ZoneId.of( "Pacific/Auckland" ) LocalTime lt = LocalTime.of( 7, 13, 0 ) LocalDate ld = LocalDate.of( 2015, Month.JANUARY, 8 ) Never use the 3-4 letter pseudo-zones such as EST or IST as they are not true time zones, not standardized, and not even unique(!). Specify a proper time zone name in the format of continent/region, such as America/Montreal, Africa/Casablanca, or Pacific/Auckland. I strongly recommend always specifying your desired/expected time zone. As you did not specify a time zone explicitly, your JVM’s current default time zone will be applied implicitly. Your code is ambiguous, as you do not address the crucial issue of time zone. The modern approach uses the java.time classes that supplant the troublesome old legacy date-time classes. LocalDate.of( 2015, Month.JANUARY, 8 ) , (calendar.getTimeInMillis() + " -> " + calendar.getTime()) Ĭt(Calendar.AM_PM, Calendar.AM) Ĭt(Calendar.MONTH, Calendar.JANUARY) įor this test my output is just what you would expect: 1420705649927 -> Thu Jan 08 09:27: import Ĭalendar calendar = Calendar.getInstance() Update: just tested this on my Android phone using AIDE, getting the exact same results. More info on Stack Overflow JavaScript = function () " -f ($(Get-Culture).Calendar.For me this works just fine on the desktop, couldn't test it on Android though. Java Calendar now = Calendar.getInstance() Replace time with other epoch/UNIX timestamps for other week numbers. Python ().isocalendar() PERL my $weekNumber = POSIX::strftime("%V", gmtime time) Or date("W", epoch) for other week numbers. Type (here '21') is compatible with Excel/LibreOffice, 21 is ISO-8601 PHP $weekNumber = date("W") ![]() Google Docs Spreadsheet =WEEKNUM(TODAY() 21) WEEKNUM(TODAY()) will show the week number with weeks starting on Sunday (return type = 1). In Excel 2007 your best choice is WEEKNUM(TODAY(),2) (2=week starting Monday). Where the return type '21' is ISO-8601 (week starting on Monday). Programming routines Microsoft Excel / LibreOffice Calc =ISOWEEKNUM(TODAY()) ![]()
0 Comments
Leave a Reply. |