// NSString* timeStr = [self stringWithDate: [NSDate dateWithTimeIntervalSince1970:userGifGrouptEntity.lastGiftSentTime / 1000]] - (NSString *)stringWithDate:(NSDate *)date { if (date == nil) return @""; NSDate *now = [NSDate date]; NSTimeInterval time = [now timeIntervalSinceDate:date]; NSCalendar* calendar = [NSCalendar currentCalendar]; NSDateComponents *nowComponents = [calendar components:NSYearCalendarUnit | NSHourCalendarUnit fromDate:now]; NSDateComponents *dateComponets = [calendar components:NSYearCalendarUnit fromDate:date]; NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init]; [dateFormatter setCalendar: [NSCalendar autoupdatingCurrentCalendar]]; if ([nowComponents year] != [dateComponets year]) { [dateFormatter setDateFormat:@"MM-dd-yyyy"]; return [dateFormatter stringFromDate:date]; } int nowHour = (int)[nowComponents hour]; int days_ago = ((int)time + 3600*(24-nowHour))/(3600*24); if (days_ago == 0){ [dateFormatter setDateFormat:@"HH:mm"]; return [dateFormatter stringFromDate:date]; }else if(days_ago == 1) { return @"Yesterday"; }else{ [dateFormatter setDateFormat:@"MM-dd"]; return [dateFormatter stringFromDate:date]; } }