format duration in minutes (seconds)

src/shared/format-date.ts

@@ -1,2 +1,9 @@
+import type { ISODate } from './types/date'
+
 export const formatDate = (date: Date | string) =>
   new Date(date).toLocaleString()
+
+export const formatDiffInMinutes = (date1: ISODate, date2: ISODate) => {
+  const diffInMs = new Date(date2).getTime() - new Date(date1).getTime()
+  return Math.max(0, Math.round(diffInMs / 1000))
+}