first commit

node_modules/luxon/src/zones/systemZone.js

@@ -0,0 +1,61 @@
+import { formatOffset, parseZoneInfo } from "../impl/util.js";
+import Zone from "../zone.js";
+
+let singleton = null;
+
+/**
+ * Represents the local zone for this JavaScript environment.
+ * @implements {Zone}
+ */
+export default class SystemZone extends Zone {
+  /**
+   * Get a singleton instance of the local zone
+   * @return {SystemZone}
+   */
+  static get instance() {
+    if (singleton === null) {
+      singleton = new SystemZone();
+    }
+    return singleton;
+  }
+
+  /** @override **/
+  get type() {
+    return "system";
+  }
+
+  /** @override **/
+  get name() {
+    return new Intl.DateTimeFormat().resolvedOptions().timeZone;
+  }
+
+  /** @override **/
+  get isUniversal() {
+    return false;
+  }
+
+  /** @override **/
+  offsetName(ts, { format, locale }) {
+    return parseZoneInfo(ts, format, locale);
+  }
+
+  /** @override **/
+  formatOffset(ts, format) {
+    return formatOffset(this.offset(ts), format);
+  }
+
+  /** @override **/
+  offset(ts) {
+    return -new Date(ts).getTimezoneOffset();
+  }
+
+  /** @override **/
+  equals(otherZone) {
+    return otherZone.type === "system";
+  }
+
+  /** @override **/
+  get isValid() {
+    return true;
+  }
+}