diff --git a/src/components/datetime/DateTimeController.cpp b/src/components/datetime/DateTimeController.cpp
index 102a4bce..29183391 100644
--- a/src/components/datetime/DateTimeController.cpp
+++ b/src/components/datetime/DateTimeController.cpp
@@ -28,6 +28,7 @@ DateTime::DateTime(Controllers::Settings& settingsController) : settingsControll
   ASSERT(mutex != nullptr);
   xSemaphoreGive(mutex);
 
+  // __DATE__ is a string of the format "MMM DD YYYY", so an offset of 7 gives the start of the year
   SetTime(compileTimeAtoi(&__DATE__[7]), 0, 0, 0, 0, 0);
 }