Tag: time

java July 6, 2018 by mkyong 0 comments

Java – How to convert System.nanoTime to Seconds

We can just divide the nanoTime by 1_000_000_000, or use the TimeUnit.SECONDS.convert to convert it. Note 1 second = 1_000_000_000 nanosecond JavaExample.java package com.mkyong; import java.util.concurrent.TimeUnit; public class JavaExample { public static void main(String[] args) throws InterruptedException { long start = System.nanoTime(); Thread.sleep(5000); long end = System.nanoTime(); long elapsedTime = end – start; System.out.println(elapsedTime); // […]

python September 21, 2015 by mkyong 1 comment

Python – How to delay few seconds

In Python, you can use time.sleep(seconds) to make the current executing Python program to sleep or delay a few seconds. import time time.sleep(1) # delays for 1 seconds time.sleep(10) # delays for 10 seconds time.sleep(60) # delays for 1 minute time.sleep(3600) # delays for 1 hour Full example. test_delay.py import time def main(): while True: […]

java January 24, 2015 by mkyong 19 comments

Java – Convert date and time between timezone

In this tutorial, we will show you few examples (ZonedDateTime (Java 8), Date, Calendar and Joda Time) to convert a date and time between different time zones. All examples will be converting the date and time from (UTC+8:00) Asia/Singapore – Singapore Time Date : 22-1-2015 10:15:55 AM to (UTC-5:00) America/New_York – Eastern Standard Time Date […]

java January 25, 2013 by mkyong 41 comments

How to calculate date and time difference in Java

In this tutorial, we show you 2 examples to calculate date / time difference in Java : Manual time calculation. Joda time library. 1. Manual time calculation Converts Date in milliseconds (ms) and calculate the differences between two dates, with following rules : 1000 milliseconds = 1 second 60 seconds = 1 minute 60 minutes […]

android November 30, 2011 by mkyong 29 comments

Android time picker example

In Android, you can use “android.widget.TimePicker” class to render a time picker component to select hour and minute in a pre-defined user interface. In this tutorial, we show you how to render time picker component via android.widget.TimePicker in current page, and also in dialog box via android.app.TimePickerDialog. In addition, we also show you how to […]