Current Time milliseconds

Is there any particular reason why the current time in milliseconds is defined as starting from Jan 1st 1970? I suppose they had to pick some time as t=0. But it just seems like something quite arbitrary - why not the time when java was first released by Sun as t=0?

tad2382 wrote:
Is there any particular reason why the current time in milliseconds is defined as starting from Jan 1st 1970? I suppose they had to pick some time as t=0. But it just seems like something quite arbitrary - why not the time when java was first released by Sun as t=0?If you're not being facetious, check out the word "standardization" on Google.
JoachimSauer wrote:
When converted to seconds it's called [Unix time|http://en.wikipedia.org/wiki/Unix_time].
Say it ain't so. A Unix standard adopted by MS? And there was me thinking we all lived on GatesTime (I thought it had something to do with the founding of MS).
Ah well, we live and learn...
Winston

Similar Messages

CURRENT TIME IN MILLISECONDS.

Hi all,
I need to get the current time in milliseconds. Is there any simple function for that.
Please do help me.
Thanking in advance...
Regards,
Aswathy.

What's your OS ?
Take care, under windows, the prcision will be less than under unix :
SQL> select * from v$version;
BANNER
Oracle Database 10g Enterprise Edition Release 10.2.0.3.0 - Prod
PL/SQL Release 10.2.0.3.0 - Production
CORE 10.2.0.3.0 Production
TNS for 32-bit Windows: Version 10.2.0.3.0 - Production
NLSRTL Version 10.2.0.3.0 - Production
SQL> select systimestamp from dual;
SYSTIMESTAMP
05/04/07 13:04:59,585000 +02:00
SQL> ---
SQL> conn H89UCBAC/***@H89UCBAC
Connected.
SQL> SQL> select * from v$version;
BANNER
Oracle9i Enterprise Edition Release 9.2.0.4.0 - 64bit Production
PL/SQL Release 9.2.0.4.0 - Production
CORE 9.2.0.3.0 Production
TNS for IBM/AIX RISC System/6000: Version 9.2.0.4.0 - Production
NLSRTL Version 9.2.0.4.0 - Production
SQL> select systimestamp from dual;
SYSTIMESTAMP
05/04/07 13:05:29,469850 +02:00
SQL> Nicolas.

Getting the current time and comparing it to a time in the future

Hello,
I am seeing in my research some debate on the best way to get the time. I am reading that just using the Date class and calling getTime() is not the most reliable way to do things. Overall, I am trying to get the current time down to the millisecond. I then want to add 5 seconds to that time and then store that value. FInally, when the current time is greater or equal to this stored value, I want to continue on in my program. Can anyone point me in the right direction on how to calculate the time variable? Any help would be much appreciated. I am new to the JAVA world.
Thanks,
Tim

To store the current time, simply use new java.util.Date(). Yes, there might be slight inconsistencies and it might not be the most accurate time possible, but without significant additional effort (perhaps a native O/S call or the use of another time library), you will not do much better. Calendar won't help in this instance either. The easiest way to get five seconds in the future is to do the following:
Date now = new Date();
Date future = new Date(now.getTime() + 5000);To store and retrieve the value, it depends on what you are doing. You can place it in the database via JDBC (BTW, if you trust the database timestamp more than Java's you can use something like Oracle's SYSDATE instead of Java's date in your SQL query). You can place it in the filesystem. You can store it in the user's session.
- Saish

Get the current time

Hi I was wondering how I can get the current time and use is to compare it e.g. in a IF sentence.

Hi I was wondering how I can get the current time and
use is to compare it e.g. in a IF sentence.This might help. I'm not exactly sure what you are asking for but I use this type of code to compare the current time to my start time in my program, specifically for my loggerformatter. The output shows the seconds and the remainder in milliseconds. The efficiency is probably suspect, but it might give you some ideas... Joel
import java.util.Date;
import java.text.NumberFormat;
import java.util.GregorianCalendar;
import java.text.SimpleDateFormat;
class TimeDiff {
    private static NumberFormat nf08 = NumberFormat.getInstance();
    private static GregorianCalendar calStart = new GregorianCalendar();
    private static GregorianCalendar calEnd = new GregorianCalendar();
     * Constructor
    public TimeDiff() {
        calStart.setTimeInMillis(System.currentTimeMillis());
     * Calculate the elapsed time in seconds
    private static long calcSsElapsed(GregorianCalendar calBegin, GregorianCalendar calEnd) {
        return((calEnd.getTime().getTime() - calBegin.getTime().getTime()) / 1000);
     * Calculate the elasped time milliseconds
    private static long calcMsElapsed(GregorianCalendar calBegin, GregorianCalendar calEnd) {
        return((calEnd.getTime().getTime() - calBegin.getTime().getTime()) % 1000);
    public static void main(String[] args) {
        try {
            TimeDiff td = new TimeDiff();
            Thread.sleep(5100);
            calEnd.setTimeInMillis(System.currentTimeMillis());
            System.out.println("Seconds="+calcSsElapsed(calStart, calEnd));
            System.out.println("Milliseconds="+calcMsElapsed(calStart, calEnd));
        catch (Exception e) {
            System.out.println("something went terribly, terribly wrong");
}

How can i get current time in different TimeZone

Hi alls,
How can i get current time in different TimeZone.
I've tried
final Calendar calendar = Calendar.getInstance(GMT0_TIME_ZONE);
final Date date = calendar.getTime();
but it returns current time in my time zone not in GMT0

a simple way would be:Sometimes gets you the right result (not during daylight saving), but always the wrong way.
I would strongly recommend getting into the habit of handling Dates correctly. A Date is a universal instant in time - the number of milliseconds since midnight GMT on 1 January 1970. That instant corresponds to various dates and times, depending on your time zone and the effect of daylight saving. You make that conversion of a universal instant to a localized date/time using Calendar and DateFormat.

ICal (Calendar.app) - Is My Current-Time Marker Missing? Feature Dropped?

Hello iCalers,
I recently made the switch to Mountain Lion from Snow Leopard. I was quite a fan of iCal in Snow Leopard—it was one of the reasons I downgraded to Snow Leopard from Lion—but since I have a newer computer that doesn't allow Snow Leopard, and I've got Mountain Lion set up pretty well for me, I'm sticking with Mountain Lion.
My standard view for things in iCal is "Weekly." In Mountain Lion's incantation, I don't see the red marker that scrolls downwards, the one that corresponded to the current time. I'm wondering: was this feature dropped in Lion/Mountain Lion, or is mine buggy, or is it an out-of-the-way preference somewhere? I peeked in some .plists and com.apple.iCal files—I laugh that Apple still calls it "iCal" at the programming end—but I couldn't see any obvious mention of that time-of-day marker.
Any ideas?
I liked it a lot—enough to open a discussion about it!

Thanks John M,
It indeed worked when I made a new user account, so I trashed and deleted my <user>/Library/Calendars folder, as well as <user>/Library/Preferences/com.apple.ical.plist—(backing them up elsewhere beforehand, in case something terrible happened), then re-set-it-up. (Holy cow it's easy to work with iCal after iCloud—literally seconds when it used to be at least a couple of minutes using Google Apps caldav or making an ical backup file and restoring calendars + fixing buggy events). It seems to be all good now.
A few times in my OS X history I've had issues come up where something is busted and I make a new user account that demonstrates that it's not busted universally. I hadn't even thought of doing that this time. Thanks for the idea!
May your days be merry and bright!

How to check a material being blocked by system at current time?

hi,
is there a method to to check a material being blocked by system at current time?
Thanks!

Call the function module ENQUEUE_EMMARAE with the required material number. If sy-subrc is not 0, after the function module has executed completely then the material is locked by a different user.
Please mark points if the solution was useful.
Regards,
Manoj

Keyboard shortcuts: current day and date, and current time?

I would like to know keyboard shortcuts for entering current day and date, and current time (separated entries) in Numbers. Something that Excel does easily. Thank you, Ian

Ian,
Numbers does not have predefined key command for Insert Date & Time as you can see from this screenshot:
All menus show the key commands on the very right (if there is a ke command). You can add you own, custom, key commands by opening system preferences and selecting the Keyboard panel, then the "Keyboard Shortcuts" segment:
Click the "+" then a modal dialog will appear. Select the application from the pop, then enter the exact name if the menu item, and, finally, your desired key combination:
You can do this for any application

How to generate current time in the format yyyy-mm-ddThh:mm:ssZ in the xslt

Hello,
i am tring to generate current time in the format yyyy-mm-ddThh:mm:ssZ in my xlst file.
the following info are necessary,
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:java="http://xml.apache.org/xslt/java" exclude-result-prefixes="java"
version="1.0">
<xsl:attribute name="generationDate"><xsl:value-of select="java:format(java:java.text.SimpleDateFormat.new('yyyy-mm-dd hh:mm:ss'), java:java.util.Date.new())"/></xsl:attribute>
but java SimpleDateFormat doesnt support yyyy-mm-ddThh:mm:ssZ.
thanks in advance.

Hi wwuest,
I use the following code to generate such a date format :
          try {
               SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
               Date date = sdf.parse(strDate);
               sdf.applyPattern("yyyy-MM-dd'T'hh:mm:ss");
               strDate = sdf.format(date);
          } // catching the parse exceptionMaybe you could try this method and see if it pass through xsl with :
new SimpleDateFormat("yyyy-MM-dd").applyPattern("yyyy-MM-dd'T'hh:mm:ss'Z'")Bye

How to get current time in jsp page?

my problem is :-
i have a radio buttons with name as 9am, 11am ,1pm, 3pm , 5pm , 7pm , 9pm , 11pm , 1am , 3am ,5am 7am. what ever the current time may be the radio button of four hour plus than current time should be atomatically checked and previous radio buttons should be disabled. for example suppose current time is 11.02am than the radio button of 3pm should be automatically checked and previous radio buttons should be disabled.
please help me if u can?

This should work but it needs testing out around midnight ( not sure if it is 00:00 or 24:00):
<%@ page import="java.util.*" %>
<html>
<head><title>Time Page</title>
</head>
<body>
<% Calendar c = Calendar.getInstance();
   c.add(Calendar.HOUR_OF_DAY, 4);
   int h = c.get(Calendar.HOUR_OF_DAY); %>
The current hour is <%= h %><br>
<% for (int i=0; i < 24; i++) { %>
   <input type=radio name=time <%= (i < h) ? "disabled" : ""%><%= (i == h) ? "checked" : ""%>><%= (i < 10) ? "0" : ""%><%= i %>:00<br>
<% } %>
</body>
</html>

IOS 5 Calendar app current time bar off after time switch

Here is a issue I have recently noticed. Yesterday we had time fall back one hour. On my Macbook, Iphone 4, and Ipad2, the system time is showing correctly(the time in menu bar on the Mac, and in the top system bar on iOS). On my two Ios5 devices however, in the "Calendar" app, the little bar with the red dot (i refer to as the "current time bar") still shows one hour ahead. So for example the actual time in Los Angeles, CA right now is 3:19 PM but in the calendar app on both Ios devices it shows as 4:19 PM. Keep in mind that the system time is showing 3:19 PM on both of these devices. I logged into the http://www.icloud.com web site and it shows correctly. On my Mac book running MacOSX 10.7.2 everything shows up ok (both system time and iCals current time bar). I am connected to Wi-Fi and 3G. I do have time zone support enabled on all devices, but turning that off did not help anything and I don't see how that could be causing this. What is causing this? Is this a bug in iOS5? Please let me know if you are experiencing the same issue so we can have Apples developers fix this bug. Thanks have a nice afternoon.
The issue:
The "Current time bar" in iOS5 Calendar is showing up one hour ahead after time switch as of yesterday (11/5/2011 Los Angeles, CA)
What I know:
System time on Mac, Iphone and Ipad shows up as the right time
Current time bar in iCal on MacOSX 10.7.2 shows right
Current time bar in Calendar on icloud.com shows right
Common posts:
This post seems to be experiencing the same issue.

I'm having the same issue... the time is right on my phone, however the time-bar is showing DST (one hour ahead). I've restarted the phone... checked my iCloud time zone, etc... even tried turning on/off the Time Zone support not only for the phone but also in the Calendar... nothing.
So in the end, correct time but the time-bar is incorrect. I hope this is just a bug that needs fixing by Apple...

Get Current Time in Eastern Time Zone

Hi,
I would like to fetch the current time but in ET timezone (and also i want to handle
daylight thing automatically).
So can anyone tell me on this .
Requirement is to fetch value in ET timezone even your db resides in India or Canada or Germany.
Regards,
Sandeep

You can use current_timestamp at time zone tz_offset('EST'):
SQL> set linesize 132
SQL> column ct format a45
SQL> column ctz format a45
SQL> ALTER SESSION SET TIME_ZONE = 'Europe/Berlin';
Session altered.
SQL> select current_timestamp ct, current_timestamp at time zone tz_offset('EST') ctz from dual;
CT                                            CTZ
11-JUL-08 10.20.53.002549 PM EUROPE/BERLIN    11-JUL-08 03.20.53.002549 PM -05:00
SQL> ALTER SESSION SET TIME_ZONE = 'Canada/Mountain';
Session altered.
SQL> select current_timestamp ct, current_timestamp at time zone tz_offset('EST') ctz from dual;
CT                                            CTZ
11-JUL-08 02.21.02.344091 PM CANADA/MOUNTAIN 11-JUL-08 03.21.02.344091 PM -05:00
SQL> SY.

Printing current time and date on a pdf document

I wish for a pdf document to print the current time and date in the same place at the foot of each page, to the following format:
Aug 04 2009, 5:11 pm.
How do I do this please? Annoyingly I have managed it in the past, but when I open up my old documents and paste the relevant field into my new document, it either prints the old date/time or else prints the present date/time, but then doesn't refresh the next time I try to print - ie it stays at one date/time.
I'd like to start again from scratch so that I have a better idea of how it works!!
Regards
Tony

Eureka!
I now have the answer, and hopefully this will help anybody else with a similar problem.
In Acrobat:
Create a text field and place it in the chosen place on the pdf form. Label it "datebox" in the General tab of Text Field Properties, and apply your character styles in the Appearance tab.
Under the "Advanced" menu, go to "Document Processing" and then "Set Document Actions"
Click on "Document Will Print" and then hit the "Edit" button. In the "JavaScript Editor" paste the following:
var myfield=getField("datebox");
var date=new Date();
date=util.printd("mmm dd yyyy, h:MM tt", date);
myfield.value=date;
Hit OK.
You have now given the instruction that whenever you print, the field named "datebox" will print the current time and date in the following format:
Aug 05 2009, 9.37 am
Regards
Tony

List "View" with current time in column

Hi.
I know that list view does not support fields calculated on page load. But I have to realize such functionality.
Can someone provide options for realizing this?
"Hack" some internal SQL query, inject JS on a view page, use .NET code somehow?
Using JS seems as the best solution, but how can I do this?
Thanks.

Hi,
According to your post, my understanding is that you wanted to display the current time in colum.
The following code snippet for your reference.
<script src="http://code.jquery.com/jquery-1.10.2.min.js" type="text/javascript"></script>
<script type="text/javascript">
function date(format, timestamp) {
var that = this,
jsdate, f, formatChr = /\\?([a-z])/gi,
formatChrCb,
// Keep this here (works, but for code commented-out
// below for file size reasons)
//, tal= [],
_pad = function(n, c) {
n = n.toString();
return n.length < c ? _pad('0' + n, c, '0') : n;
txt_words = ["Sun", "Mon", "Tues", "Wednes", "Thurs", "Fri", "Satur", "January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December"];
formatChrCb = function(t, s) {
return f[t] ? f[t]() : s;
f = {
// Day
d: function() { // Day of month w/leading 0; 01..31
return _pad(f.j(), 2);
D: function() { // Shorthand day name; Mon...Sun
return f.l().slice(0, 3);
j: function() { // Day of month; 1..31
return jsdate.getDate();
l: function() { // Full day name; Monday...Sunday
return txt_words[f.w()] + 'day';
N: function() { // ISO-8601 day of week; 1[Mon]..7[Sun]
return f.w() || 7;
S: function() { // Ordinal suffix for day of month; st, nd, rd, th
var j = f.j();
if (j < 4 || j > 20) {
return (['st', 'nd', 'rd'])[j % 10 - 1];
else {
return 'th';
w: function() { // Day of week; 0[Sun]..6[Sat]
return jsdate.getDay();
z: function() { // Day of year; 0..365
var a = new Date(f.Y(), f.n() - 1, f.j()),
b = new Date(f.Y(), 0, 1);
return Math.round((a - b) / 864e5);
// Week
W: function() { // ISO-8601 week number
var a = new Date(f.Y(), f.n() - 1, f.j() - f.N() + 3),
b = new Date(a.getFullYear(), 0, 4);
return _pad(1 + Math.round((a - b) / 864e5 / 7), 2);
// Month
F: function() { // Full month name; January...December
return txt_words[6 + f.n()];
m: function() { // Month w/leading 0; 01...12
return _pad(f.n(), 2);
M: function() { // Shorthand month name; Jan...Dec
return f.F().slice(0, 3);
n: function() { // Month; 1...12
return jsdate.getMonth() + 1;
t: function() { // Days in month; 28...31
return (new Date(f.Y(), f.n(), 0)).getDate();
// Year
L: function() { // Is leap year?; 0 or 1
var j = f.Y();
return j % 4 === 0 & j % 100 !== 0 | j % 400 === 0;
o: function() { // ISO-8601 year
var n = f.n(),
W = f.W(),
Y = f.Y();
return Y + (n === 12 && W < 9 ? 1 : n === 1 && W > 9 ? -1 : 0);
Y: function() { // Full year; e.g. 1980...2010
return jsdate.getFullYear();
y: function() { // Last two digits of year; 00...99
return f.Y().toString().slice(-2);
// Time
a: function() { // am or pm
return jsdate.getHours() > 11 ? "pm" : "am";
A: function() { // AM or PM
return f.a().toUpperCase();
B: function() { // Swatch Internet time; 000..999
var H = jsdate.getUTCHours() * 36e2,
// Hours
i = jsdate.getUTCMinutes() * 60,
// Minutes
s = jsdate.getUTCSeconds(); // Seconds
return _pad(Math.floor((H + i + s + 36e2) / 86.4) % 1e3, 3);
g: function() { // 12-Hours; 1..12
return f.G() % 12 || 12;
G: function() { // 24-Hours; 0..23
return jsdate.getHours();
h: function() { // 12-Hours w/leading 0; 01..12
return _pad(f.g(), 2);
H: function() { // 24-Hours w/leading 0; 00..23
return _pad(f.G(), 2);
i: function() { // Minutes w/leading 0; 00..59
return _pad(jsdate.getMinutes(), 2);
s: function() { // Seconds w/leading 0; 00..59
return _pad(jsdate.getSeconds(), 2);
u: function() { // Microseconds; 000000-999000
return _pad(jsdate.getMilliseconds() * 1000, 6);
// Timezone
e: function() { // Timezone identifier; e.g. Atlantic/Azores, ...
// The following works, but requires inclusion of the very large
// timezone_abbreviations_list() function.
/* return that.date_default_timezone_get();
throw 'Not supported (see source code of date() for timezone on how to add support)';
I: function() { // DST observed?; 0 or 1
// Compares Jan 1 minus Jan 1 UTC to Jul 1 minus Jul 1 UTC.
// If they are not equal, then DST is observed.
var a = new Date(f.Y(), 0),
// Jan 1
c = Date.UTC(f.Y(), 0),
// Jan 1 UTC
b = new Date(f.Y(), 6),
// Jul 1
d = Date.UTC(f.Y(), 6); // Jul 1 UTC
return ((a - c) !== (b - d)) ? 1 : 0;
O: function() { // Difference to GMT in hour format; e.g. +0200
var tzo = jsdate.getTimezoneOffset(),
a = Math.abs(tzo);
return (tzo > 0 ? "-" : "+") + _pad(Math.floor(a / 60) * 100 + a % 60, 4);
P: function() { // Difference to GMT w/colon; e.g. +02:00
var O = f.O();
return (O.substr(0, 3) + ":" + O.substr(3, 2));
T: function() { // Timezone abbreviation; e.g. EST, MDT, ...
// The following works, but requires inclusion of the very
// large timezone_abbreviations_list() function.
/* var abbr = '', i = 0, os = 0, default = 0;
if (!tal.length) {
tal = that.timezone_abbreviations_list();
if (that.php_js && that.php_js.default_timezone) {
default = that.php_js.default_timezone;
for (abbr in tal) {
for (i=0; i < tal[abbr].length; i++) {
if (tal[abbr][i].timezone_id === default) {
return abbr.toUpperCase();
for (abbr in tal) {
for (i = 0; i < tal[abbr].length; i++) {
os = -jsdate.getTimezoneOffset() * 60;
if (tal[abbr][i].offset === os) {
return abbr.toUpperCase();
return 'UTC';
Z: function() { // Timezone offset in seconds (-43200...50400)
return -jsdate.getTimezoneOffset() * 60;
// Full Date/Time
c: function() { // ISO-8601 date.
return 'Y-m-d\\TH:i:sP'.replace(formatChr, formatChrCb);
r: function() { // RFC 2822
return 'D, d M Y H:i:s O'.replace(formatChr, formatChrCb);
U: function() { // Seconds since UNIX epoch
return jsdate / 1000 | 0;
this.date = function(format, timestamp) {
that = this;
jsdate = (timestamp === undefined ? new Date() : // Not provided
(timestamp instanceof Date) ? new Date(timestamp) : // JS Date()
new Date(timestamp * 1000) // UNIX timestamp (auto-convert to int)
return format.replace(formatChr, formatChrCb);
return this.date(format, timestamp);
$(function() {
$('.ms-noWrap').text(date('l, F jS, Y, h:i:s A'));
</script>
Note: You should change the class name to fit your environment.
http://jsfiddle.net/licson0729/jHHsm/
More reference:
http://social.technet.microsoft.com/Forums/sharepoint/en-US/580b9c50-f945-4931-b68f-da68d84e766e/how-to-display-current-date-time-in-share-point-using-jquery
Thanks & Regards,
Jason
Jason Guo
TechNet Community Support

How to check whether current time satisfies the schedule?

I am working on a task, which is opposite of cron tab. My application is in groovy but can call all Java api. Can you please provide some pointers?
User is allowed to schedule a rule to be executed the way crontab gives the options. For example he wants the rule to be executed from Monday to Friday from 8 am to 5 pm.
I cans schedule in crontabe or Quartz. At run time I have to match, whether the current time satisfy the time condition entered by user.
I may have to store this information in the database the way we put in the cron. Eg. my tables will have following
Id|| Policy Id|| seconds|| minutes|| hours|| Day|| Date|| month|| year
1 || 5 || 1 || 1 || 8-17 || M-F||? || * ||*
Now while my code is getting executing, how can I match whether the current time matches the condition mentioned above.
Thanks in advance.

[Using Span|http://tus.svn.sourceforge.net/viewvc/tus/tjacobs/util/] would make this easy

Current Time milliseconds

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