Start to build relay dialog

central_frontend/src/utils/DateUtils.ts

@@ -1,6 +1,29 @@
+import dayjs, { Dayjs } from "dayjs";
+
 /**
  * Get current UNIX time, in seconds
  */
 export function time(): number {
   return Math.floor(new Date().getTime() / 1000);
 }
+
+/**
+ * Get dayjs representation of given time of day
+ */
+export function timeOfDay(time: number): Dayjs {
+  const hours = Math.floor(time / 3600);
+  const minutes = Math.floor(time / 60) - hours * 60;
+
+  return dayjs(
+    `2022-04-17T${hours.toString().padStart(2, "0")}:${minutes
+      .toString()
+      .padStart(2, "0")}`
+  );
+}
+
+/**
+ * Get time of day (in secs) from a given dayjs representation
+ */
+export function dayjsToTimeOfDay(d: Dayjs): number {
+  return d.hour() * 3600 + d.minute() * 60 + d.second();
+}