1 files changed, 9 insertions, 0 deletions
diff --git a/src/duration.ts b/src/duration.ts
new file mode 100644
index 0000000..92952a7
--- /dev/null
+++ b/src/duration.ts
@@ -0,0 +1,9 @@
+function prettyPrintNumber(n: number): string {
+  return n.toString().padStart(2, "0")
+}
+
+export function prettyPrint(duration: number): string {
+  const minutes = Math.floor(duration / 60)
+  const seconds = duration % 60
+  return prettyPrintNumber(minutes) + ":" + prettyPrintNumber(seconds)
+}