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How to find date difference from current date

// Returns integer values the day differences negative reference to past no. of days from current day.

function dayDifferenceFromCurrent (date) {
var now = new Date();
return date.getDate() – now.getDate()
}

// Returns integer values the hour differences negative reference to past no. of days from current hour.

function hoursDifferenceFromCurrent (date) {
var now = new Date();
return date.getHours() – now.getHours()
}

// Default format

var start = new Date();

Sun Jan 03 2016 10:52:48 GMT+0530 (India Standard Time)

 

Date Set Methods

Set methods are used for setting a part of a date. Here are the most common (alphabetically):

Method Description
setDate() Set the day as a number (1-31)
setFullYear() Set the year (optionally month and day)
setHours() Set the hour (0-23)
setMilliseconds() Set the milliseconds (0-999)
setMinutes() Set the minutes (0-59)
setMonth() Set the month (0-11)
setSeconds() Set the seconds (0-59)
setTime() Set the time (milliseconds since January 1, 1970)

Date Get Methods

Get methods are used for getting a part of a date. Here are the most common (alphabetically):

Method Description
getDate() Get the day as a number (1-31)
getDay() Get the weekday as a number (0-6)
getFullYear() Get the four digit year (yyyy)
getHours() Get the hour (0-23)
getMilliseconds() Get the milliseconds (0-999)
getMinutes() Get the minutes (0-59)
getMonth() Get the month (0-11)
getSeconds() Get the seconds (0-59)
getTime() Get the time (milliseconds since January 1, 1970)

UTC Date Methods

UTC date methods are used for working UTC dates (Univeral Time Zone dates):

Method Description
getUTCDate() Same as getDate(), but returns the UTC date
getUTCDay() Same as getDay(), but returns the UTC day
getUTCFullYear() Same as getFullYear(), but returns the UTC year
getUTCHours() Same as getHours(), but returns the UTC hour
getUTCMilliseconds() Same as getMilliseconds(), but returns the UTC millisecons
getUTCMinutes() Same as getMinutes(), but returns the UTC minutes
getUTCMonth() Same as getMonth(), but returns the UTC month
getUTCSeconds() Same as getSeconds(), but returns the UTC seconds

 

Time Zones

JavaScript accepts these time zones:

Time Zone Description
UTC Coordinated Universal Time
GMT Greenwich Mean Time
EDT (US) Eastern Daylight Time
CDT (US) Central Daylight Time
MDT (US) Mountain Daylight Time
PDT (US) Pacific Daylight Time
EST (US) Eastern Standard Time
CST (US) Central Standard Time
MST (US) Mountain Standard Time
PST (US) Pacific Standard Time
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