How to set current time to some other time in javascript -

i trying set current time other time , whenever try access current time need new time. suppose current time 2 in local machine. want change 10 , current time should keep ticking 10 instead of 2 whenever access it.

ex:

var x = new date(); 

if see x.gethours() fetches local time 2 , every time keeps ticking 2 base.

but need change 10 new date() gives 10 , keeps ticking every second based on that.

i not want use setinterval() purpose. sure have solution setinterval(). thing have multiple setintervals , other 1 stopping updating time in setinterval() trying update 10 every second.

you can't change system time javascript, not if it's running browser. you'd need special environment, 1 ability interface javascript , operating system's api that. that's no simple thing , way out of scope of application you're working on.

i suggest create function/object means fetch current date offset. this:

foo = function () {}; foo.prototype.offset = 8; foo.prototype.getdate = function () {     var date = new date();     date.sethours(date.gethours() + this.offset);     return date; } 

now can instantiate foo, set offset (8 default) , work it. when need offset hour can do:

var foo = new foo(); var bar = foo.getdate(); 

bar not tick, whenever need current date offset may use foo's getdate again.

edit: in order start fixed date, can use constructor this:

foo = function (basedate) {     this._date = basedate;     this._fetched = new date(); }  foo.prototype.getdate = function () {     var = new date();     var offset = now.gettime() - this._fetched.gettime();     this._date.settime(this._date.gettime() + offset);     this._fetched = now;     return this._date; } 

notice now.getday() return day of week, not day of month. hence now.getdate() there. (edited use base date instead of fixed, hard-coded one).