YouTipDate Object
The Date object is used to work with dates and times.
Create a Date object: new Date()
The following four methods can also be used to create a Date object:
var d = new Date();
var d = new Date(milliseconds); // Parameter is milliseconds
var d = new Date(dateString);
var d = new Date(year, month, day, hours, minutes, seconds, milliseconds);
- The
millisecondsparameter is a Unix timestamp — an integer value representing the number of milliseconds elapsed since January 1, 1970 00:00:00 UTC (the Unix epoch). - The
dateStringparameter is a string representation of a date. - The
year,month,day,hours,minutes,seconds, andmillisecondsparameters represent year, month, day, hour, minute, second, and millisecond, respectively.
For a more comprehensive guide on dates and practical examples, please refer to the JavaScript Date Object Tutorial.
Date Object Properties
| Property | Description |
|---|---|
| constructor | Returns a reference to the Date function that created this object. |
| prototype | Enables you to add properties and methods to objects. |
Date Object Methods
| Method | Description |
|---|---|
| getDate() | Returns the day of the month (1 ~ 31) from a Date object. |
| getDay() | Returns the day of the week (0 ~ 6) from a Date object. |
| getFullYear() | Returns the year (four digits) from a Date object. |
| getHours() | Returns the hour (0 ~ 23) from a Date object. |
| getMilliseconds() | Returns the milliseconds (0 ~ 999) from a Date object. |
| getMinutes() | Returns the minutes (0 ~ 59) from a Date object. |
| getMonth() | Returns the month (0 ~ 11) from a Date object. |
| getSeconds() | Returns the seconds (0 ~ 59) from a Date object. |
| getTime() | Returns the number of milliseconds since January 1, 1970. |
| getTimezoneOffset() | Returns the difference in minutes between local time and Greenwich Mean Time (GMT). |
| getUTCDate() | Returns the day of the month (1 ~ 31) from a Date object, according to universal time. |
| getUTCDay() | Returns the day of the week (0 ~ 6) from a Date object, according to universal time. |
| getUTCFullYear() | Returns the year (four digits) from a Date object, according to universal time. |
| getUTCHours() | Returns the hour (0 ~ 23) from a Date object, according to universal time. |
| getUTCMilliseconds() | Returns the milliseconds (0 ~ 999) from a Date object, according to universal time. |
| getUTCMinutes() | Returns the minutes (0 ~ 59) from a Date object, according to universal time. |
| getUTCMonth() | Returns the month (0 ~ 11) from a Date object, according to universal time. |
| getUTCSeconds() | Returns the seconds (0 ~ 59) from a Date object, according to universal time. |
| getYear() | Deprecated. Use getFullYear() instead. |
| parse() | Returns the number of milliseconds between midnight of January 1, 1970 and the specified date (as a string). |
| setDate() | Sets the day of the month (1 ~ 31) for a Date object. |
| setFullYear() | Sets the year (four digits) for a Date object. |
| setHours() | Sets the hour (0 ~ 23) for a Date object. |
| setMilliseconds() | Sets the milliseconds (0 ~ 999) for a Date object. |
| setMinutes() | Sets the minutes (0 ~ 59) for a Date object. |
| setMonth() | Sets the month (0 ~ 11) for a Date object. |
| setSeconds() | Sets the seconds (0 ~ 59) for a Date object. |
| setTime() | Sets a Date object to a specified number of milliseconds since January 1, 1970. |
| setUTCDate() | Sets the day of the month (1 ~ 31) for a Date object, according to universal time. |
| setUTCFullYear() | Sets the year (four digits) for a Date object, according to universal time. |
| setUTCHours() | Sets the hour (0 ~ 23) for a Date object, according to universal time. |
| setUTCMilliseconds() | Sets the milliseconds (0 ~ 999) for a Date object, according to universal time. |
| setUTCMinutes() | Sets the minutes (0 ~ 59) for a Date object, according to universal time. |
| setUTCMonth() | Sets the month (0 ~ 11) for a Date object, according to universal time. |
| setUTCSeconds() | The setUTCSeconds() method sets the seconds field of a Date object according to universal time (UTC). |
| setYear() | Deprecated. Use setFullYear() instead. |
| toDateString() | Converts the date portion of a Date object into a string. |
| toGMTString() | Deprecated. Use toUTCString() instead. |
| toISOString() | Returns the date as a string, using the ISO standard. |
| toJSON() | Returns the date as a JSON-formatted string. |
| toLocaleDateString() | Converts the date portion of a Date object into a string, using locale-specific formatting. |
| toLocaleTimeString() | Converts the time portion of a Date object into a string, using locale-specific formatting. |
| toLocaleString() | Converts a Date object into a string, using locale-specific formatting. |
| toString() | Converts a Date object into a string. |
| toTimeString() | Converts the time portion of a Date object into a string. |
| toUTCString() | Converts a Date object into a string, according to universal time. Example: var today = new Date(); var UTCstring = today.toUTCString(); |
| UTC() | Returns the number of milliseconds between January 1, 1970 and the specified date, according to universal time. |
| valueOf() | Returns the primitive value of a Date object. |
| now() | Returns the number of milliseconds elapsed since January 1, 1970 00:00:00 UTC. |