Time off management
HR management
Substitution calendar
Now you can easily check which days you are replacing another employee.
Thanks to the new view in the Calendar section it is easy to find out on who's behalf and when you were chosen to replace another employee.
Create a new Calendar in your "Calendar subscriptions" choosing "I'm standing in for".
You can also copy the calendar link and add it to your Google Calendar to always know when you are going to substitute another employee.