GeekZilla
Date and Time Functions
Here's a handy reference for all of your JavaScript date/time needs.
Function | Description | Returned Values |
getDate(), getUTCDate() | Day of the month | 1-31 |
getDay(), getUTCDay() | Day of the week (integer) | 0-6 |
getFullYear(), getUTCFullYear() | Year (full four digit) | 1900+ |
getHours(), getUTCHours() | Hour of the day (integer) | 0-23 |
getMilliseconds(), getUTCMilliseconds() | Milliseconds (since last second) | 0-999 |
getMinutes(), getUTCMinutes() | Minutes (since last hour) | 0-59 |
getMonth(), getUTCMonth() | Month | 0-11 |
getSeconds(), getUTCSeconds() | Seconds (since last minute) | 0-59 |
getTime() | Number of milliseconds since 1 January 1970 | |
getTimezoneOffset() | Difference between local time and GMT in minutes | 0-1439 |
getYear() | Year | 0-99 for years between 1900-1999, Four digit for 2000+ |
parse() | Returns the number of milliseconds since midnight 1 January 1970 for a given date and time string passed to it. | |
setDate(), setUTCDate() | Sets the day, given a number between 1-31 | Date in milliseconds |
setFullYear(), setUTCFullYear() | Sets the year, given a four digit number | Date in milliseconds |
setHours(), setUTCHours() | Sets the hour, given a number between 0-23 | Date in milliseconds |
setMilliseconds(), setUTCMilliseconds() | Sets the milliseconds, given a number | Date in milliseconds |
setMinutes(), setUTCMinutes() | Sets the minutes, given a number between 0-59 | Date in milliseconds |
setMonth(), setUTCMonth() | Sets the month, given a number between 0-11 | Date in milliseconds |
setSeconds(), setUTCSeconds() | Sets the seconds,l given a number between 0-59 | Date in milliseconds |
setTime() | Sets the date, given the number of milliseconds since 1 January 1970 | Date in milliseconds |
setYear() | Sets the year, given either a two digit or four digit number | Date in milliseconds |
toGMTString(), toUTCString() | GMT date and time as a string | day dd mmm yyyy hh:mm:ss GMT |
toLocaleString() | Local date and time as a string | Depends on operating system, locale, and browser |
toString() | Local date and time as a string | Depends on operating system, locale, and browser |
UTC() | Returns the number of milliseconds since 1 January 1970 for a given date in year, month, day (and optionally, hours, minutes, seconds, and milliseconds) | Date in milliseconds |
valueOf() | Number of milliseconds since 1 January 1970 | Date in milliseconds |
Author Barrington Haynes
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