diff --git a/src/platforms/rp2040/tests/test_erl_sources/test_clocks.erl b/src/platforms/rp2040/tests/test_erl_sources/test_clocks.erl
index 7e184e6e6..76e278a11 100644
--- a/src/platforms/rp2040/tests/test_erl_sources/test_clocks.erl
+++ b/src/platforms/rp2040/tests/test_erl_sources/test_clocks.erl
@@ -34,6 +34,8 @@ start() ->
         true ->
             ok
     end,
+    % give time to the emulator to synchronize rtc time and system time
+    timer:sleep(500),
     test_clock(system_time_after_set_rtc, fun() -> erlang:system_time(millisecond) end),
     NewDate = erlang:universaltime(),
     if