Java code for getting current time

Question

I am searching code in java for fetching or synchronizing my local PC system time into my application

User · Answer

Not really sure about what you meant  but you probably just need  Date d   new Date

User · Answer

You can use new Date    and it ll give you current time   If you need to represent it in some format  and usually you need to do it  then use formatters   DateFormat df   DateFormat getDateTimeInstance  DateFormat MEDIUM  DateFormat MEDIUM  new Locale   en    EN     String formattedDate   df format  new Date

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Just to inform for furthers developers  and thankfully to Basil Bourque  I just wanna add my stone to this topic   If you want simply get the HH MM SS format then do this   LocalTime hour   ZonedDateTime now   toLocalTime   truncatedTo ChronoUnit SECONDS     Cheers   P S   This will work only at least with Java 8

User · Answer

Like said above you can use   Date d   new Date      or use  Calendar getInstance      or if you want it in millis  System currentTimeMillis

User · Answer

Try this way  more efficient and compatible   SimpleDateFormat time formatter   new SimpleDateFormat  yyyy-MM-dd HH mm ss SSS    String current time str   time formatter format System currentTimeMillis       Log i  test    current time str     current time str

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tl dr  Instant now       UTC      or     ZonedDateTime now         Specify time zone      ZoneId of   Pacific Auckland          Details  The bundled java util Date  Calendar classes are notoriously troublesome  Avoid them  They are now legacy  supplanted by the java time framework    Instead  use either    java timeBuilt-in with Java 8 and later  Official successor to Joda-Time Back-ported to Java 6  amp  7 and to Android  Joda-TimeThird-party library  open-source  free-of-cost    java time  ZonedDateTime zdt   ZonedDateTime now      If needed for old code  convert to java util Date  Go through at Instant which is a moment on the timeline in UTC   java util Date date   java util Date from  zdt toInstant        Time Zone  Better to specify explicitly your desired expected time zone rather than rely implicitly on the JVM   s current default time zone   ZoneId zoneId   ZoneId of   America Montreal     ZonedDateTime zdt   ZonedDateTime now  zoneId        Pass desired expected time zone      Joda-Time  FYI  the Joda-Time project is now in maintenance mode  with the team advising migration to the java time classes   DateTime now   DateTime now      To convert from a Joda-Time DateTime object to a java util Date for inter-operating with other classes     java util Date date   now toDate        Search StackOverflow before posting  Your question has already been asked and answered     About java time  The java time framework is built into Java 8 and later  These classes supplant the troublesome old legacy date-time classes such as java util Date  Calendar   amp  SimpleDateFormat   The Joda-Time project  now in maintenance mode  advises migration to the java time classes   To learn more  see the Oracle Tutorial  And search Stack Overflow for many examples and explanations  Specification is JSR 310   Where to obtain the java time classes     Java SE 8  Java SE 9  and later   Built-in   Part of the standard Java API with a bundled implementation  Java 9 adds some minor features and fixes   Java SE 6 and Java SE 7   Much of the java time functionality is back-ported to Java 6  amp  7 in ThreeTen-Backport   Android   Later versions of Android bundle implementations of the java time classes  For earlier Android  the ThreeTenABP project adapts ThreeTen-Backport  mentioned above   See How to use ThreeTenABP          The ThreeTen-Extra project extends java time with additional classes  This project is a proving ground for possible future additions to java time  You may find some useful classes here such as Interval  YearWeek  YearQuarter  and more

User · Answer

System currentTimeMillis    everything else works off that   eg new Date   calls System currentTimeMillis

User · Answer

To get system time use Calendar getInstance   getTime    And you should get the new instance of Calendar each time to have current time   To change system time from java code you can use a command line

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new Date   getTime   is bugged       Date date   new Date        System out println date       System out println date getHours           date getMinutes           date getSeconds         long t1   date getTime        System out println  t1   1000   60   60    24          t1   1000   60    60          t1   1000    60       long t2   System currentTimeMillis        System out println  t2   1000   60   60    24          t2   1000   60    60          t2   1000    60     It returns me the wrong time millis  System currentTimeMillis   too  Since I ask the Date instance to tell me the corresponding time millis it must return the matching ones not others from a different time zone  Funny how deprecated methods are the only ones which return correct values

User · Answer

Both  new java util Date    and  System currentTimeMillis    will give you current system time

User · Answer

try this to get the current date You can also get current hour  minutes and seconds by using getters    new Date System currentTimeMillis    get

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Try this   import java text SimpleDateFormat  import java util Calendar   public class currentTime        public static void main String   args            Calendar cal   Calendar getInstance            SimpleDateFormat sdf   new SimpleDateFormat  HH mm ss            System out println  sdf format cal getTime                  You can format SimpleDateFormat in the way you like  For any additional information you can look in java api   SimpleDateFormat  Calendar

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I understand this is quite an old question  But would like to clarify that   Date d   new Date      is depriciated in the current versions of Java  The recommended way is using a calendar object  For eg   Calendar cal   Calendar getInstance    Date currentTime   cal getTime      I hope this will help people who may refer this question in future  Thank you all

User · Answer

try this   final String currentTime      String valueOf System currentTimeMillis

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