I have two variables. weekStartDate and startDate. they both hold essentially the same timestamp:

this.startDate  Date {Mon Mar 26 2012 00:00:00 GMT+0530 (IST)}
this.weekStartDate   Date {Mon Mar 26 2012 00:00:00 GMT+0530 (IST)}

the problem is: when I try to getTime(), they show a slightly different value:

this.startDate.getTime()    1332700200000
this.weekStartDate.getTime()    1332700200506

how can i fix this?

I have two variables. weekStartDate and startDate. they both hold essentially the same timestamp:

this.startDate  Date {Mon Mar 26 2012 00:00:00 GMT+0530 (IST)}
this.weekStartDate   Date {Mon Mar 26 2012 00:00:00 GMT+0530 (IST)}

the problem is: when I try to getTime(), they show a slightly different value:

this.startDate.getTime()    1332700200000
this.weekStartDate.getTime()    1332700200506

how can i fix this?

• javascript
• date

• 2 User this.weekStartDate.setMilliseconds(0). – Pointy Commented Mar 30, 2012 at 14:14
• Can you show how you're instantiating them? – Nik Commented Mar 30, 2012 at 14:18

2 Answers 2

The difference is 506 milliseconds. The number of milliseconds isn’t displayed when you call toString() on a Date object, so anything more precise than seconds will go unnoticed unless you pare the numeric value.

To reset the milliseconds to 0, use:

this.weekStartDate.setMilliseconds(0);

I think the milliseconds are different. Set the milliseconds of boths dates to zero then the dates will be the same:

this.weekStartDate.setMilliseconds(0);
this.startDate.setMilliseconds(0);

edit: damn i was to slow