diff --git a/_documentation/absence.md b/_documentation/absence.md
index b0ebdd375..2975a1b8e 100644
--- a/_documentation/absence.md
+++ b/_documentation/absence.md
@@ -13,35 +13,57 @@ The `Absence` screen can be seen by any user that has the `absence` permission.
 
 When you are eligible for holidays, meaning that your contract settings have a value for `holidays`, you can add holidays here.
 
-- Vacation days can be full days or half days.
-- Vacation days count as working time, so they will be added to your working time account.
-- How much time is used for each day depends on the expected working hours for the day.
+- Vacation days can be full days or half days
+- Vacation days count as working time, so they will be added to your daily working time
+- The time to you daily working time depends on the expected working hours for that day
 - You can book ranges of holidays
 - Days without expected working hours will be ignored when creating ranges
 
 ## Sickness
 
-TODO 
+Everyone can enter sickness entries. 
+
+- Sickness days can be enetred as date-range
+- A sickness entry will always fill up the daily working time
+- If you already entered working-time the same day, sickness will fill up the remaining open time
+- There are no "half-day" entries available, because a half-day of sickness means: there needs to at least one time-entry with 50% of the expected working-time
+  - example: 8h are expected, the users enters a timesheet of 4h, the user adds a sickness entry, this entry will fill up the remaining 4h
+
+### My child is sick
+
+Use the drop-down next to the "Report sickness" button and select the "Sickness of a child" category.
 
 ## Time-Off
 
-TODO
+PTO (personal time-off) entries are for informational purpose, they do NOT influence your daily time by themselves.
+
+As you are not tracking any working-time during your PTO, Kimai automatically reduces your working time account for that period.
 
 ## Other absences
 
-TODO 
+Other absences are all kind of reasons, that do not fit into any other absence category. 
+
+- Always entered as a duration  
+
+### Parental leave
+
+This fills up entire days and can be entered as date-range.
+
+### Unpaid holiday
+
+This fills up entire days and can be entered as date-range.
 
 ## Permissions
 
 Administrators require the `contract_other_profile` permission to see the `Contract` menu, which includes the `Absence` management view.
 
-| Permission Name          | Description                                                                                                         |
-|--------------------------|---------------------------------------------------------------------------------------------------------------------|
-| absence                  | View and access the Absence screen. By default given to: `User`, `Teamlead`, `Administrator`, `Super Administrator` |
-| edit_own_absence         | Edit the own absences. By default given to: `User`, `Teamlead`, `Administrator`, `Super Administrator`              | 
-| edit_other_absence       | Edit other users absences. By default given to: `Teamlead`, `Administrator`, `Super Administrator`                  |
-| delete_own_absence       | Delete the own absence entries. By default given to: `Teamlead`, `Administrator`, `Super Administrator`             |
-| delete_other_absence     | Delete other users absence entries. By default given to: `Teamlead`, `Administrator`, `Super Administrator`         |
+| Permission Name          | Description                                                                                                                                                                                                   |
+|--------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
+| absence                  | View and access the Absence screen. By default given to: `User`, `Teamlead`, `Administrator`, `Super Administrator`                                                                                           |
+| edit_own_absence         | Edit the own absences. By default given to: `User`, `Teamlead`, `Administrator`, `Super Administrator`                                                                                                        | 
+| edit_other_absence       | Edit other users absences. By default given to: `Teamlead`, `Administrator`, `Super Administrator`                                                                                                            |
+| delete_own_absence       | Delete the own absence entries. By default given to: `Teamlead`, `Administrator`, `Super Administrator`                                                                                                       |
+| delete_other_absence     | Delete other users absence entries. By default given to: `Teamlead`, `Administrator`, `Super Administrator`                                                                                                   |
 {: .table }
 
 {% include store-howto-permissions.md %}