sunrise to sunset from timing sketch mod 1

//sunrise to sunset from timing sketch

#define FASTLED_INTERNAL
#include <FastLED.h>
#include <Wire.h>


#define NUM_LEDS 6
#define DATA_PIN 6
#define am1 7
int am1state = 0;
uint16_t currentPixel = 0;
uint16_t led = 0;
byte maxBrightness = 150;

//----------PALETTES-----------

DEFINE_GRADIENT_PALETTE (am_gp) {       // 0000 TO 1200
  0, 0, 0, 0,
  30, 100, 0, 0,
  54, 161, 83, 60,
  75, 212, 100, 80,
  100, 255, 175, 150,
  135, 255, 253, 200,
  150, 255, 253, 213,
  179, 255, 253, 255,
  255, 255, 255, 255
};

DEFINE_GRADIENT_PALETTE (pm_gp) {    // 1200 To 0000
  0, 255, 255, 255,                          //white
  18, 255, 253, 213,                          //bright yellow
  56, 212, 202, 0,                           //dark yellow
  115, 161, 83, 0,                             //orange
  179, 0, 0, 0,                               //dark red
  255, 0, 0, 0                                  //black}
};

CRGBPalette16 myPal1 = am_gp;
CRGBPalette16 myPal2 = pm_gp;


struct CRGB leds[NUM_LEDS];
static uint8_t paletteIndex = 0;

//------------SETUP-------------

void setup() {
  FastLED.addLeds<WS2811, DATA_PIN, BRG>(leds, NUM_LEDS);
  pinMode(am1, INPUT);
}

//------------LOOP-------------

void loop() {

    pmCycle();
    FastLED.show();
  amCycle();
  FastLED.show();
}

//Functions------------------------------

void amCycle()
{
  CRGB colour = ColorFromPalette(myPal1, paletteIndex, maxBrightness, LINEARBLEND);
  fill_solid(leds, NUM_LEDS, colour);

  EVERY_N_MILLISECONDS(1000) {
    while (paletteIndex <=256) {
      paletteIndex++;
    }
   }
   if (paletteIndex >=255){
    paletteIndex=0;}
   }


//*****************************************
void pmCycle()
{
  CRGB colour2 = ColorFromPalette(myPal2, paletteIndex, maxBrightness, LINEARBLEND);
  fill_solid(leds, NUM_LEDS, colour2);
  EVERY_N_MILLISECONDS(1000) {
    while (paletteIndex <= 256) {
      paletteIndex++;
    }
 if (paletteIndex >=255){
    paletteIndex=0;}
   }
  }