diff --git a/sections/designRules.md b/sections/designRules.md
index 7f2e2d2..e9eba7d 100644
--- a/sections/designRules.md
+++ b/sections/designRules.md
@@ -218,7 +218,7 @@ https://api.example.org/v1/vergunningen/d285e05c-6b01-45c3-92d8-5e19a946b66f
+
@@ -301,6 +301,9 @@ Handling date and time is tricky and can lead to confusion among clients. The da
+The combination of /core/date-time/timezone and /core/date-time/date-omit-time-portion leads to the conclusion that if a field contains a UTC timezone, it MUST be interpreted as datetime.
+As such, it avoids confusion as shown in the above example.
+
## HTTP methods
Although the REST architectural style does not impose a specific protocol, REST APIs are typically implemented using HTTP [[rfc9110]].