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How do I use PHP to get the current year?

I want to put a copyright notice in the footer of a web site, but I think it's incredibly tacky for the year to be out-of-date. How would I make the year update automatically with PHP 4 and PHP 5?

Java Date vs Calendar

Could someone please advise the current "best practice" around Date and Calendar types.

When writing new code, is it best to always favour Calendar over Date, or are there circumstances where Date is the more appropriate datatype?

How do you get a timestamp in JavaScript?

How can I get a timestamp in JavaScript?

Something similar to Unix's timestamp, that is, a single number that represents the current time and date. Either as a number or a string.

How to add 30 minutes to a JavaScript Date object?

I'd like to get a Date object which is 30 minutes later than another Date object. How do I do it with JavaScript?

Calculate difference between two dates (number of days)?

I see that this question has been answered for Java, JavaScript, and PHP, but not C#. So, how might one calculate the number of days between two dates in C#?

MySQL Query GROUP BY day / month / year

Is it possible I make a simple query to count how many records I have in a determined period of time like a Year, month or day, having a TIMESTAMP field, like:

SELECT COUNT(id)
FROM stats
WHERE record_date.YEAR = 2009
GROUP BY record_date.YEAR

Or even:

SELECT COUNT(id)
FROM stats
GROUP BY record_date.YEAR, record_date.MONTH

To have a monthly statistic.

Thanks!

Why is subtracting these two times (in 1927) giving a strange result?

If I run the following program, which parses two date strings referencing times one second apart and compares them:

public static void main(String[] args) throws ParseException {
    SimpleDateFormat sf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");  
    String str3 = "1927-12-31 23:54:07";  
    String str4 = "1927-12-31 23:54:08";  
    Date sDt3 = sf.parse(str3);  
    Date sDt4 = sf.parse(str4);  
    long ld3 = sDt3.getTime() /1000;  
    long ld4 = sDt4.getTime() /1000;
    System.out.println(ld4-ld3);
}

The output is:

353

Why is ld4-ld3 not 1 (as I would expect from the one-second difference in the times), but 353?

If I change the dates to times one second later:

String str3 = "1927-12-31 23:54:08";  
String str4 = "1927-12-31 23:54:09";  

Then ld4-ld3 will be 1.

Java version:

java version "1.6.0_22"
Java(TM) SE Runtime Environment (build 1.6.0_22-b04)
Dynamic Code Evolution Client VM (build 0.2-b02-internal, 19.0-b04-internal, mixed mode)

Timezone(TimeZone.getDefault()):

sun.util.calendar.ZoneInfo[id="Asia/Shanghai",
offset=28800000,dstSavings=0,
useDaylight=false,
transitions=19,
lastRule=null]

Locale(Locale.getDefault()): zh_CN

How to get current date in JavaScript?

How do I get current date in JavaScript?

How to return the date part only from a SQL Server datetime datatype

SELECT GETDATE()

Returns: 2008-09-22 15:24:13.790

I want that date part without the time part: 2008-09-22 00:00:00.000

Compare two dates with JavaScript

Can someone suggest a way to compare the values of two dates greater than, less than, and not in the past using JavaScript? The values will be coming from text boxes.

Get current time and date on Android

How can I get the current time and date in an Android app?

Get Last Day of the Month in Python

Is there a way using Python's standard library to easily determine (i.e. one function call) the last day of a given month?

If the standard library doesn't support that, does the dateutil package support this?

jQuery UI DatePicker to show month year only

I am using jQuery date picker to display the calendar all over my app. I want to know if I can use it to display the month and year (May 2010) and not the calendar?

How do you convert a JavaScript date to UTC?

Suppose a user of your website enters a date range.

2009-1-1 to 2009-1-3

You need to send this date to a server for some processing, but the server expects all dates and times to be in UTC.

Now suppose the user is in Alaska or Hawaii or Fiji. Since they are in a timezone quite different from UTC, the date range needs to be converted to something like this:

2009-1-1T8:00:00 to 2009-1-4T7:59:59

Using the JavaScript Date object, how would you convert the first "localized" date range into something the server will understand?

Java string to date conversion

Can somebody recommend the best way to convert a string in the format 'January 2, 2010' to a date in java? Ultimately, I want to break out the month, the day, and the year as integers so that I can use:

Date date = new Date();
date.setMonth()..
date.setYear()..
date.setDay()..
date.setlong currentTime = date.getTime();

to convert the date into time.