You start with a UTC base date other than "now", using Date.UTC() newDate = new Date(Date.UTC(2015, 3, 1)). You want the UTC date 5 days ago from NOW (UTC) var newDate = Date.now() + -5*24*3600*1000 // date 5 days ago in milliseconds UTC However, it works if you're doing your math all in UTC, egĪ. These methods allow getting and setting the year, month, day, hour, minute, second, and millisecond using local time or UTC. Date control in HTML 5 accepts in the format of Year - month - day as we use in SQL If the month is 9, it needs to be set as 09 not 9 simply. When you create a Date object with the New Date (), a set of methods become available to operate on it. Experimente Sintaxe tDate (dayValue) Parmetros dayValue Um nmero inteiro que representa o dia do ms. toString() which returns the local date and therefore is incompatible with the Date.now() base date in UTC. Run > Reset Date Object The Date is a built-in object in JavaScript. O mtodo setDate () configura o dia do objeto Date relativamente ao incio do ms configurado previamente. Return value Changes the Date object in place, and returns its new timestamp. Try it Syntax setDate(dateValue) Parameters dateValue An integer representing the day of the month. Try it Syntax setUTCDate(dateValue) Parameters dateValue An integer from 1 to 31 representing the day of the month. The setDate () method of Date instances changes the day of the month for this date according to local time. assume (wrongly) that Date.now() gives you the current LOCAL now time, or The setUTCDate () method of Date instances changes the day of the month for this date according to universal time. The setDate () method of Date instances changes the day of the month for this date according to local time.Try it Syntax getDate() Return value An integer, between 1 and 31, representing the day of the month for the given date according to local time. To expand on that, the answer above will have daylightsaving inaccuracies in the case where you want to calculate the LOCAL day 5 days ago in a timezone with daylightsaving changes and you The getDate () method of Date instances returns the day of the month for this date according to local time. Here's how (restrictions apply) Save 10 on JSAUX Steam Deck 45W Dock Charger with 3.3FT USB-C Cable when you purchase 1 or more Qualifying items offered by JS Digital US. As s/he says "Some day in year have 23 hours, and some 25 due to timezone rules". Save 10 on JSAUX Steam Deck Carrying Case with Large Storage Space(Upgrade) when you purchase 1 or more Qualifying items offered by JS Digital US. NOTE: Date.now() doesn't work in older browsers (eg IE8 I think). So use Date.now() var newDate = Date.now() + -5*24*3600*1000 // date 5 days ago in millisecondsĪnd if you like it formatted new Date(newDate).toString() // or.
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