nsdate - Swift displaying the time or date based on timestamp -

i have api returns data including timestamp record. in swift have timestamp element loaded , converted double , can convert time. want able return time if date of record today , return date if record not today. see below:

        let unixtimestring:double = double(rowdata["timestamp"] as! string)!         let date = nsdate(timeintervalsince1970: unixtimestring) // on est time , has not yet been localised.         var dateformatter = nsdateformatter()         dateformatter.timestyle = .shortstyle         dateformatter.doesrelativedateformatting = true         // if date today display time, if date not today display date , change text color grey.         var stringtimestampresponse = dateformatter.stringfromdate(date)         cell.timestamplabel.text = string(stringtimestampresponse) 

do use nscalendar see if 'date' today , something? how localise time correct user rather server time?

there handy function on nscalendar tells whether nsdate in today or not (requires @ least ios 8) isdateintoday()

to see working, put playground:

// create couple of unix dates. let timeintervaltoday: nstimeinterval = nsdate().timeintervalsince1970 let timeintervallastyear: nstimeinterval = 1438435830   // show dates are. let = nsdate(timeintervalsince1970: timeintervaltoday) let = nsdate(timeintervalsince1970: timeintervallastyear)  // function show formatted date timestamp func displaytimestamp(ts: double) -> string {     let date = nsdate(timeintervalsince1970: ts)     let formatter = nsdateformatter()     formatter.timezone = nstimezone.systemtimezone()      if nscalendar.currentcalendar().isdateintoday(date) {         formatter.datestyle = .nostyle         formatter.timestyle = .shortstyle     } else {         formatter.datestyle = .shortstyle         formatter.timestyle = .nostyle     }      return formatter.stringfromdate(date) }  // should show time. displaytimestamp(timeintervaltoday)  // should show date. displaytimestamp(timeintervallastyear) 

or, if want see looks without running yourself: