Separate parse and format functions to their own files

src/format.ts

@@ -0,0 +1,17 @@
+import dayjs, { Dayjs } from 'dayjs';
+import { Duration } from 'dayjs/plugin/duration.js';
+
+export const formatTimestamp = (timestamp: Dayjs): string => timestamp.format('YYYY-MM-DD HH:mm');
+
+export const formatDuration = (unLogged: Duration): string => unLogged.format('HH[ hours and ]mm [minutes]');
+
+export const getHoursRoundedStr = (duration: Duration) =>
+    `(${getHoursRounded(duration)} as hours rounded to next even 15 minutes)`;
+
+const getHoursRounded = (duration: Duration) => {
+    // Round up to the next multiple of 15
+    const minutes = Math.ceil(duration.as('minutes') / 15) * 15;
+
+    // Return as hours
+    return dayjs.duration(minutes, 'minutes').asHours();
+};