diff --git a/README.md b/README.md
index 02b870209..2b44c99ad 100644
--- a/README.md
+++ b/README.md
@@ -200,6 +200,10 @@ to understand the requirements before sending your pull-requests.
 
 ## Requirements
 
+### Uptodate clock
+
+The clock must be uptodate, ideally syncronized to a NTP server rather frequently. Drifting time can lead to losses.
+
 ### Min hardware required
 
 To run this bot we recommend you a cloud instance with a minimum of: