Fix setting dates in safari

Fixes #207

src/helpers/time/createDateFromString.js

@@ -0,0 +1,15 @@
+/**
+ * Returns a new date from any format in a way that all browsers, especially safari, can understand.
+ *
+ * @see https://kolaente.dev/vikunja/frontend/issues/207
+ *
+ * @param dateString
+ * @returns {Date}
+ */
+export const createDateFromString = dateString => {
+	if (dateString.includes('-')) {
+		dateString = dateString.replace(/-/g, "/")
+	}
+
+	return new Date(dateString)
+}

src/helpers/time/createDateFromString.test.js

@@ -0,0 +1,13 @@
+import {createDateFromString} from './createDateFromString'
+
+test('YYYY-MM-DD HH:MM', () => {
+	const dateString = '2021-02-06 12:00'
+	const date = createDateFromString(dateString)
+	expect(date).toBeInstanceOf(Date)
+	expect(date.getDate()).toBe(6)
+	expect(date.getMonth()).toBe(1)
+	expect(date.getFullYear()).toBe(2021)
+	expect(date.getHours()).toBe(12)
+	expect(date.getMinutes()).toBe(0)
+	expect(date.getSeconds()).toBe(0)
+})