diff --git a/apps/emqx/src/emqx_trace/emqx_trace_formatter.erl b/apps/emqx/src/emqx_trace/emqx_trace_formatter.erl
index c31bc0355..a44237bd0 100644
--- a/apps/emqx/src/emqx_trace/emqx_trace_formatter.erl
+++ b/apps/emqx/src/emqx_trace/emqx_trace_formatter.erl
@@ -27,7 +27,7 @@ format(
     #{level := debug, meta := Meta = #{trace_tag := Tag}, msg := Msg},
     #{payload_encode := PEncode}
 ) ->
-    Time = calendar:system_time_to_rfc3339(erlang:system_time(second)),
+    Time = calendar:system_time_to_rfc3339(erlang:system_time(microsecond), [{unit, microsecond}]),
     ClientId = to_iolist(maps:get(clientid, Meta, "")),
     Peername = maps:get(peername, Meta, ""),
     MetaBin = format_meta(Meta, PEncode),
diff --git a/changes/ce/feat-10588.en.md b/changes/ce/feat-10588.en.md
new file mode 100644
index 000000000..2f907a549
--- /dev/null
+++ b/changes/ce/feat-10588.en.md
@@ -0,0 +1,2 @@
+Increase the time precision of trace logs from second to microsecond.
+For example, change from `2023-05-02T08:43:50+00:00` to `2023-05-02T08:43:50.237945+00:00`.