Step 1

To update the period, select the dropdown as indicated. Changes will be saved immediately upon selection; you do not need to click a separate "Save" button.

Step 2

To edit the number of minutes in a period, click the blue icon as indicated and a modal will pop up which will allow you to edit the times.  You cannot edit the minutes for a period which already has an event entered. Click Save when finished.

Step 3

To update the game time, you can simply type in the time or click the blue icon to select the time instead (a new modal will pop up). Then typing the time, you do not need to type the colon... you can simply type the minutes and seconds as one and the system will automatically add the colon for you.