新款导入节目单，自动匹配时间（需提前导入分P信息）

app/Util/TimeUtil.php

@@ -0,0 +1,19 @@
+<?php
+
+namespace App\Util;
+
+
+use Carbon\Carbon;
+
+class TimeUtil
+{
+    public static function calculate_program_time(Carbon $base_time, int $seconds, int $bias = 0): Carbon
+    {
+        $time = $base_time->copy()->addSeconds($seconds)->addSeconds($bias);
+        if ($time->second > 30) {
+            $time->addMinute();
+        }
+        $time->seconds(0);
+        return $time;
+    }
+}