diff --git a/src/util.jl b/src/util.jl
index 682f6c3..a70e985 100644
--- a/src/util.jl
+++ b/src/util.jl
@@ -42,6 +42,7 @@ function timedifference(starttime::DateTime, stoptime::DateTime, unit::String)::
   diff = stoptime - starttime
   unit = lowercase(unit)
   
+    # Check the unit and calculate the time difference accordingly
   if unit == "milliseconds"
       return diff.value
   elseif unit == "seconds"