New importers.

app/Import/Converter/Date.php

@@ -0,0 +1,48 @@
+<?php
+/**
+ * Date.php
+ * Copyright (C) 2016 thegrumpydictator@gmail.com
+ *
+ * This software may be modified and distributed under the terms
+ * of the MIT license.  See the LICENSE file for details.
+ */
+
+declare(strict_types = 1);
+
+namespace FireflyIII\Import\Converter;
+
+use Carbon\Carbon;
+use FireflyIII\Exceptions\FireflyException;
+use InvalidArgumentException;
+use Log;
+
+/**
+ * Class Date
+ *
+ * @package FireflyIII\Import\Converter
+ */
+class Date extends BasicConverter implements ConverterInterface
+{
+
+    /**
+     * @param $value
+     *
+     * @return Carbon
+     * @throws FireflyException
+     */
+    public function convert($value): Carbon
+    {
+        Log::debug('Going to convert ', ['value' => $value]);
+        Log::debug('Format: ', ['format' => $this->config['date-format']]);
+        try {
+            $date = Carbon::createFromFormat($this->config['date-format'], $value);
+        } catch (InvalidArgumentException $e) {
+            Log::critical($e->getMessage());
+            Log::critical('Cannot convert this string using the given format.', ['value' => $value, 'format' => $this->config['date-format']]);
+            throw new FireflyException(sprintf('Cannot convert "%s" to a valid date using format "%s".', $value, $this->config['date-format']));
+        }
+        Log::debug('Converted date', ['converted' => $date->toAtomString()]);
+
+        return $date;
+    }
+}