array(4) {
  [0]=>
  array(2) {
    [0]=>
    array(2) {
      ["start"]=>
      int(1614697200)
      ["end"]=>
      int(1614870000)
    }
    [1]=>
    array(2) {
      ["start"]=>
      int(1615474800)
      ["end"]=>
      int(1615474800)
    }
  }
  [1]=>
  array(3) {
    [0]=>
    array(2) {
      ["start"]=>
      int(1614610800)
      ["end"]=>
      int(1614697200)
    }
    [1]=>
    array(2) {
      ["start"]=>
      int(1614870000)
      ["end"]=>
      int(1615042800)
    }
    [2]=>
    array(2) {
      ["start"]=>
      int(1629903600)
      ["end"]=>
      int(1629903600)
    }
  }
  [2]=>
  array(1) {
    [0]=>
    array(2) {
      ["start"]=>
      int(1614783600)
      ["end"]=>
      int(1615215600)
    }
  }
  [3]=>
  array(0) {
  }
}