[fabric/core] Add ClockTime class

packages/fabric/core/time/clock-time.ts

@@ -0,0 +1,23 @@
+/**
+ * Represents a time of day in hours, minutes, and seconds.
+ */
+export class ClockTime {
+  readonly hours: number;
+  readonly minutes: number;
+  readonly seconds: number;
+
+  constructor(hours?: number, minutes?: number, seconds?: number) {
+    this.hours = hours ?? 0;
+    this.minutes = minutes ?? 0;
+    this.seconds = seconds ?? 0;
+  }
+
+  toString() {
+    return `${this.hours}:${this.minutes}:${this.seconds}`;
+  }
+
+  static fromString(time: string): ClockTime {
+    const [hours, minutes, seconds] = time.split(":").map(Number);
+    return new ClockTime(hours, minutes, seconds);
+  }
+}

packages/fabric/core/time/index.ts

@@ -1,2 +1,3 @@
+export * from "./clock-time.ts";
 export * from "./posix-date.ts";
 export * from "./time-constants.ts";