Date Object
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The Date Object in Javascript
Date Constructors
var newDateObject = new Date();
var newDateObject = new Date(dateValue);
var newDateObject = new Date(year, month, day, [hours], [minutes], [seconds], [milliseconds]);
var newDateObject = new Date(year, month, day);
var newDateObject = new Date(year month, day, hour, minutes, seconds);
If dateValue is a numeric value, it represents the number of milliseconds since January 1, 1970 00:00:00. The ranges of dates is approximately 285,616 years from either side of midnight. Negative numbers indicate dates prior to 1970.
| Year: | The full year (1980). |
| Month: | 0-11 (January to December) |
| Month: | 0-11 (January to December) |
| Day: | 1-31 |
| Hour: | 0-23 |
| Minutes: | 0-59 |
| Seconds: | 0-59 |
| Milliseconds: | 0-999 |
Remarks
Once the date object is constructed, methods can be accessed by the following syntax:
Once the date object is constructed, methods can be accessed by the following syntax:
var today = new Date();
var h = today.getHours();
var s = today.toString();
| Local Time is defined as: | the time on the computer from where the script is executed. |
| UTC (Universal Coordinated Time) | refers to the time as set by the World Time Standard. Also known as GMT (Greenwich Mean Time). |
Date Methods
| getDate() |
returns the day of the month of the date object according to local time |
| getDay() |
returns the day of the week of the date object where 0 = Sunday |
| getFullYear() |
returns the year of the date object according to local time |
| getHours() |
returns the hour of the date object according to local time |
| getMilliseconds() |
returns the milliseconds of the date object according to local time |
| getMinutes() |
returns the minutes of the date object according to local time |
| getMonth() |
returns the month of the date object according to local time |
| getSeconds() |
returns the seconds of the date object according to local time |
| getTime() |
returns the number of milliseconds since 1/1/1970 according to universal time. negative numbers indicate a date prior to 1/1/1970 |
| getTimezoneOffset() |
returns the timezone offset between local time and GMT |
| getUTCDate() |
returns the day of the month of the date object according to UTC |
| getUTCDay() |
returns the day of the week of the date object according to UTC. 0 = Sunday |
| getUTCFullYear() |
returns the year of the date object according to UTC |
| getUTCHours() |
returns the hours of the date object according to UTC |
| getUTCMilliseconds() |
returns the milliseconds of the date object according to UTC |
| getUTCMinutes() |
returns the minutes of the date object according to UTC |
| getUTCMonth() |
returns the month of the date object according to UTC |
| getUTCSeconds() |
returns the seconds of the date object according to UTC |
| getYear() |
returns a two digit representation of the year in the date object |
| parse(dateString) |
returns the number of milliseconds in dateString since 1/1/1970 local time |
| setDate(domValue) |
set the day of the month of this date object according to local time |
| setFullYear(yearValue, [monthValue][, [domValue] ]) |
set the year of this date object according to local time |
| setHours(hourValue, [minuteValue] [, [secondsValue] [, [millisecondsValue]]] ) |
set the hour of this date object according to local time |
| setMilliseconds(millisecondValue) |
set the milliseconds of this date object according to local time |
| setMinutes(minuteValue) |
set the minutes of this date object according to local time |
| setMonth(monthValue) |
set the month of this date object according to local time |
| setSeconds(secondValue, [millisecondsValue]) |
set the seconds of this date object according to local time |
| setTime(millisecondsValue) |
set the number of milliseconds since 1/1/1970 according to local time |
| setUTCDate(domValue) |
set the day of the month of this date object according to UTC |
| setUTCFullYear(yearValue, [monthValue] [, [domValue]]) |
set the year of this date object according to UTC |