diff --git a/CHANGES-4.3.md b/CHANGES-4.3.md
index da2df758d..dd75320b7 100644
--- a/CHANGES-4.3.md
+++ b/CHANGES-4.3.md
@@ -21,7 +21,7 @@ File format:
   Now MQTT clients may be authorized with respect to a specific claim containing publish/subscribe topic whitelists.
 * Better randomisation of app screts (changed from timestamp seeded sha hash (uuid) to crypto:strong_rand_bytes)
 * Return a client_identifier_not_valid error when username is empty and username_as_clientid is set to true [#7862]
-* Add more rule engine date functions: format_date/3, format_date/4, date_to_unix_ts/4 [#7894]
+* Add more rule engine date functions: format_date/3, format_date/4, date_to_unix_ts/3, date_to_unix_ts/4 [#7894]
 * Add proto_name and proto_ver fields for $event/client_disconnected event.
 * Mnesia auth/acl http api support multiple condition queries.
 * Inflight QoS1 Messages for shared topics are now redispatched to another alive subscribers upon chosen subscriber session termination.
diff --git a/apps/emqx_rule_engine/test/emqx_rule_funcs_SUITE.erl b/apps/emqx_rule_engine/test/emqx_rule_funcs_SUITE.erl
index 632697a87..fe9cf688b 100644
--- a/apps/emqx_rule_engine/test/emqx_rule_funcs_SUITE.erl
+++ b/apps/emqx_rule_engine/test/emqx_rule_funcs_SUITE.erl
@@ -736,8 +736,7 @@ prop_format_date_fun() ->
     Args3 = [<<"second">>, <<"+04:00">>, <<"--%m--%d--%Y---%H:%M:%S">>, Second],
     Formatters3 = apply_func(format_date, Args3),
     % -04:00 remove offset
-    OffsetSeconds = emqx_rule_funcs:timezone_to_second(<<"-04:00">>),
-    Args3DTUS = [<<"second">>, OffsetSeconds, <<"--%m--%d--%Y---%H:%M:%S">>, Formatters3],
+    Args3DTUS = [<<"second">>, <<"-04:00">>, <<"--%m--%d--%Y---%H:%M:%S">>, Formatters3],
     Second == apply_func(date_to_unix_ts, Args3DTUS).
 
 apply_func(Name, Args) when is_atom(Name) ->
@@ -888,9 +887,9 @@ message() ->
 %% CT functions
 %%------------------------------------------------------------------------------
 
-all() -> [t_format_date_funcs].
-    % IsTestCase = fun("t_" ++ _) -> true; (_) -> false end,
-    % [F || {F, _A} <- module_info(exports), IsTestCase(atom_to_list(F))].
+all() ->
+    IsTestCase = fun("t_" ++ _) -> true; (_) -> false end,
+    [F || {F, _A} <- module_info(exports), IsTestCase(atom_to_list(F))].
 
 suite() ->
     [{ct_hooks, [cth_surefire]}, {timetrap, {seconds, 30}}].
diff --git a/etc/emqx.conf b/etc/emqx.conf
index fcc8557a2..161f9fc2b 100644
--- a/etc/emqx.conf
+++ b/etc/emqx.conf
@@ -460,37 +460,28 @@ log.file = emqx.log
 ## Value: text | json
 log.formatter = text
 
-## Text logger, date format.
+## Format of the text logger.
 ##
-## Value: rfc3339 | FormatString
-##   FormatString:
+## Value: rfc3339 | FORMAT
+## Where FORMAT is the format string of the timestamp. Supported specifiers:
 ##     %Y: year
 ##     %m: month
 ##     %d: day
 ##     %H: hour
 ##     %M: minute
 ##     %S: second
-##     %6N: microseconds
-##     %3N: milliseconds
+##     %N: nanoseconds (000000000 - 999999999)
+##     %6N: microseconds (00000 - 999999)
+##     %3N: milliseconds (000 - 999)
 ##     %z: timezone, [+-]HHMM
 ##     %:z: timezone, [+-]HH:MM
 ##     %::z: timezone, [+-]HH:MM:SS
+##
 ## For example:
-## emqx-server-date: %Y-%m-%dT%H:%M:%S.%6N %:z
+## log.formatter.text.date.format = %Y-%m-%dT%H:%M:%S.%6N %:z
 ## Default: rfc3339
 # log.formatter.text.date.format = rfc3339
 
-## Text logger, timezone.
-## Only takes effect when log.formatter.text.date.format not rfc3339.
-##
-## Value: local | z | UTC TimeOffset
-## TimeOffset: [+-]HHMM or [+|-]HH:MM or [+|-]HH:MM:SS, for example: +08:00.
-## local is the system local time timezone.
-## z: UTC zulu timezone.
-## Z: UTC zulu timezone. Same as z.
-## Default: local
-# log.formatter.text.date.timezone = local
-
 ## Log to single line
 ## Value: Boolean
 #log.single_line = true
diff --git a/priv/emqx.schema b/priv/emqx.schema
index 96d0005ad..304fc0634 100644
--- a/priv/emqx.schema
+++ b/priv/emqx.schema
@@ -534,12 +534,6 @@ end}.
   {datatype, string}
 ]}.
 
-%% @doc format logs as text, date format part. local or any UTC offset
-{mapping, "log.formatter.text.date.timezone", "kernel.logger", [
-  {default, "local"},
-  {datatype, string}
-]}.
-
 %% @doc format logs in a single line.
 {mapping, "log.single_line", "kernel.logger", [
   {default, true},
@@ -668,70 +662,9 @@ end}.
                     end,
                     DateStrTrans(list_to_binary(DateStr), [])
               end,
-            {DateOffsetStr, DateOffset} =
-              case cuttlefish:conf_get("log.formatter.text.date.timezone", Conf, "local") of
-                "z" ->
-                  {"z", "z"};
-                "Z" ->
-                  {"Z", "Z"};
-                "local" ->
-                    UniversalTime =
-                      calendar:system_time_to_universal_time(
-                        erlang:system_time(second),
-                        second),
-                    LocalTime = erlang:universaltime_to_localtime(UniversalTime),
-                    LocalSecs = calendar:datetime_to_gregorian_seconds(LocalTime),
-                    UniversalSecs = calendar:datetime_to_gregorian_seconds(UniversalTime),
-                    OffsetSecond = LocalSecs - UniversalSecs,
-                    {Sign, PosOffsetSecond} =
-                      case OffsetSecond >= 0 of
-                        true -> {$+, OffsetSecond};
-                        false -> {$-, - OffsetSecond}
-                      end,
-                    {H, M, S} = calendar:seconds_to_time(PosOffsetSecond),
-                    Str =
-                      case S of
-                        0 ->
-                          io_lib:format("~c~2.10.0B:~2.10.0B", [Sign, H, M]);
-                        S ->
-                          io_lib:format("~c~2.10.0B:~2.10.0B:~2.10.0B", [Sign, H, M, S])
-                      end,
-                    {Str, OffsetSecond};
-                DateOStr ->
-                  Sign = hd(DateOStr),
-                  Signs = #{$+ => 1, $- => -1},
-                  case maps:get(Sign, Signs, undefined) of
-                      undefined ->
-                        error(bad_logger_offset);
-                      PosNeg ->
-                        try
-                          [Sign | HM] = DateOStr,
-                          {HourStr, MinuteStr, SecondStr} =
-                            case string:tokens(HM, ":") of
-                              [H, M] ->
-                                {H, M, "0"};
-                              [H, M, S] ->
-                                {H, M, S};
-                              [HHMM] when erlang:length(HHMM) == 4 ->
-                                {string:sub_string(HHMM, 1,2), string:sub_string(HHMM, 3,4), "0"}
-                            end,
-                          Hour = erlang:list_to_integer(HourStr),
-                          Minute = erlang:list_to_integer(MinuteStr),
-                          Second = erlang:list_to_integer(SecondStr),
-                          true = (Hour =< 23),
-                          true = (Minute =< 59),
-                          true = (Second =< 59),
-                          {DateOStr, PosNeg * (Hour * 3600 + Minute * 60 + Second)}
-                        catch _E : _R ->
-                          error(bad_logger_offset)
-                        end
-                  end
-              end,
             {emqx_logger_textfmt,
                   #{
                     date_format => DateFormat,
-                    timezone_offset => DateOffset,
-                    timezone => DateOffsetStr,
                     template =>
                       [" [",level,"] ",
                        {clientid,
diff --git a/src/emqx.appup.src b/src/emqx.appup.src
index 0b5361758..1f1443f37 100644
--- a/src/emqx.appup.src
+++ b/src/emqx.appup.src
@@ -2,7 +2,9 @@
 %% Unless you know what you are doing, DO NOT edit manually!!
 {VSN,
   [{"4.3.15",
-    [{load_module,emqx_session,brutal_purge,soft_purge,[]},
+    [{add_module,emqx_calendar},
+     {load_module,emqx_logger_textfmt,brutal_purge,soft_purge,[]},
+     {load_module,emqx_session,brutal_purge,soft_purge,[]},
      {load_module,emqx_misc,brutal_purge,soft_purge,[]},
      {load_module,emqx_shared_sub,brutal_purge,soft_purge,[]},
      {load_module,emqx_frame,brutal_purge,soft_purge,[]},
@@ -16,7 +18,9 @@
      {update,emqx_os_mon,{advanced,[]}},
      {load_module,emqx_app,brutal_purge,soft_purge,[]}]},
    {"4.3.14",
-    [{load_module,emqx_misc,brutal_purge,soft_purge,[]},
+    [{add_module,emqx_calendar},
+     {load_module,emqx_logger_textfmt,brutal_purge,soft_purge,[]},
+     {load_module,emqx_misc,brutal_purge,soft_purge,[]},
      {load_module,emqx_session,brutal_purge,soft_purge,[]},
      {load_module,emqx_channel,brutal_purge,soft_purge,[]},
      {load_module,emqx_access_rule,brutal_purge,soft_purge,[]},
@@ -34,7 +38,9 @@
      {update,emqx_os_mon,{advanced,[]}},
      {load_module,emqx_hooks,brutal_purge,soft_purge,[]}]},
    {"4.3.13",
-    [{load_module,emqx_session,brutal_purge,soft_purge,[]},
+    [{add_module,emqx_calendar},
+     {load_module,emqx_logger_textfmt,brutal_purge,soft_purge,[]},
+     {load_module,emqx_session,brutal_purge,soft_purge,[]},
      {load_module,emqx_access_rule,brutal_purge,soft_purge,[]},
      {load_module,emqx_shared_sub,brutal_purge,soft_purge,[]},
      {load_module,emqx_hooks,brutal_purge,soft_purge,[]},
@@ -58,7 +64,9 @@
      {update,emqx_os_mon,{advanced,[]}},
      {load_module,emqx_connection,brutal_purge,soft_purge,[]}]},
    {"4.3.12",
-    [{load_module,emqx_access_rule,brutal_purge,soft_purge,[]},
+    [{add_module,emqx_calendar},
+     {load_module,emqx_logger_textfmt,brutal_purge,soft_purge,[]},
+     {load_module,emqx_access_rule,brutal_purge,soft_purge,[]},
      {load_module,emqx_shared_sub,brutal_purge,soft_purge,[]},
      {load_module,emqx_hooks,brutal_purge,soft_purge,[]},
      {load_module,emqx_plugins,brutal_purge,soft_purge,[]},
@@ -86,7 +94,9 @@
      {load_module,emqx_message,brutal_purge,soft_purge,[]},
      {load_module,emqx_limiter,brutal_purge,soft_purge,[]}]},
    {"4.3.11",
-    [{load_module,emqx_alarm_handler,brutal_purge,soft_purge,[]},
+    [{add_module,emqx_calendar},
+     {load_module,emqx_logger_textfmt,brutal_purge,soft_purge,[]},
+     {load_module,emqx_alarm_handler,brutal_purge,soft_purge,[]},
      {load_module,emqx_access_rule,brutal_purge,soft_purge,[]},
      {load_module,emqx_shared_sub,brutal_purge,soft_purge,[]},
      {load_module,emqx_hooks,brutal_purge,soft_purge,[]},
@@ -116,7 +126,9 @@
      {load_module,emqx_message,brutal_purge,soft_purge,[]},
      {load_module,emqx_limiter,brutal_purge,soft_purge,[]}]},
    {"4.3.10",
-    [{load_module,emqx_alarm_handler,brutal_purge,soft_purge,[]},
+    [{add_module,emqx_calendar},
+     {load_module,emqx_logger_textfmt,brutal_purge,soft_purge,[]},
+     {load_module,emqx_alarm_handler,brutal_purge,soft_purge,[]},
      {load_module,emqx_access_rule,brutal_purge,soft_purge,[]},
      {load_module,emqx_shared_sub,brutal_purge,soft_purge,[]},
      {load_module,emqx_hooks,brutal_purge,soft_purge,[]},
@@ -146,7 +158,9 @@
      {load_module,emqx_message,brutal_purge,soft_purge,[]},
      {load_module,emqx_limiter,brutal_purge,soft_purge,[]}]},
    {"4.3.9",
-    [{load_module,emqx_alarm_handler,brutal_purge,soft_purge,[]},
+    [{add_module,emqx_calendar},
+     {load_module,emqx_logger_textfmt,brutal_purge,soft_purge,[]},
+     {load_module,emqx_alarm_handler,brutal_purge,soft_purge,[]},
      {load_module,emqx_access_rule,brutal_purge,soft_purge,[]},
      {load_module,emqx_shared_sub,brutal_purge,soft_purge,[]},
      {load_module,emqx_hooks,brutal_purge,soft_purge,[]},
@@ -180,7 +194,9 @@
      {load_module,emqx_message,brutal_purge,soft_purge,[]},
      {load_module,emqx_limiter,brutal_purge,soft_purge,[]}]},
    {"4.3.8",
-    [{load_module,emqx_alarm_handler,brutal_purge,soft_purge,[]},
+    [{add_module,emqx_calendar},
+     {load_module,emqx_logger_textfmt,brutal_purge,soft_purge,[]},
+     {load_module,emqx_alarm_handler,brutal_purge,soft_purge,[]},
      {load_module,emqx_access_rule,brutal_purge,soft_purge,[]},
      {load_module,emqx_shared_sub,brutal_purge,soft_purge,[]},
      {load_module,emqx_hooks,brutal_purge,soft_purge,[]},
@@ -214,7 +230,9 @@
      {load_module,emqx_message,brutal_purge,soft_purge,[]},
      {load_module,emqx_limiter,brutal_purge,soft_purge,[]}]},
    {"4.3.7",
-    [{load_module,emqx_access_rule,brutal_purge,soft_purge,[]},
+    [{add_module,emqx_calendar},
+     {load_module,emqx_logger_textfmt,brutal_purge,soft_purge,[]},
+     {load_module,emqx_access_rule,brutal_purge,soft_purge,[]},
      {load_module,emqx_shared_sub,brutal_purge,soft_purge,[]},
      {load_module,emqx_hooks,brutal_purge,soft_purge,[]},
      {load_module,emqx_plugins,brutal_purge,soft_purge,[]},
@@ -248,7 +266,9 @@
      {load_module,emqx_message,brutal_purge,soft_purge,[]},
      {load_module,emqx_limiter,brutal_purge,soft_purge,[]}]},
    {"4.3.6",
-    [{load_module,emqx_access_rule,brutal_purge,soft_purge,[]},
+    [{add_module,emqx_calendar},
+     {load_module,emqx_logger_textfmt,brutal_purge,soft_purge,[]},
+     {load_module,emqx_access_rule,brutal_purge,soft_purge,[]},
      {load_module,emqx_shared_sub,brutal_purge,soft_purge,[]},
      {load_module,emqx_hooks,brutal_purge,soft_purge,[]},
      {load_module,emqx_plugins,brutal_purge,soft_purge,[]},
@@ -282,7 +302,9 @@
      {load_module,emqx_message,brutal_purge,soft_purge,[]},
      {load_module,emqx_limiter,brutal_purge,soft_purge,[]}]},
    {"4.3.5",
-    [{load_module,emqx_shared_sub,brutal_purge,soft_purge,[]},
+    [{add_module,emqx_calendar},
+     {load_module,emqx_logger_textfmt,brutal_purge,soft_purge,[]},
+     {load_module,emqx_shared_sub,brutal_purge,soft_purge,[]},
      {load_module,emqx_hooks,brutal_purge,soft_purge,[]},
      {load_module,emqx_plugins,brutal_purge,soft_purge,[]},
      {load_module,emqx_pmon,brutal_purge,soft_purge,[]},
@@ -316,7 +338,9 @@
      {load_module,emqx_message,brutal_purge,soft_purge,[]},
      {load_module,emqx_limiter,brutal_purge,soft_purge,[]}]},
    {"4.3.4",
-    [{load_module,emqx_hooks,brutal_purge,soft_purge,[]},
+    [{add_module,emqx_calendar},
+     {load_module,emqx_logger_textfmt,brutal_purge,soft_purge,[]},
+     {load_module,emqx_hooks,brutal_purge,soft_purge,[]},
      {load_module,emqx_plugins,brutal_purge,soft_purge,[]},
      {load_module,emqx_pmon,brutal_purge,soft_purge,[]},
      {load_module,emqx_banned,brutal_purge,soft_purge,[]},
@@ -350,7 +374,9 @@
      {load_module,emqx_message,brutal_purge,soft_purge,[]},
      {load_module,emqx_limiter,brutal_purge,soft_purge,[]}]},
    {"4.3.3",
-    [{load_module,emqx_hooks,brutal_purge,soft_purge,[]},
+    [{add_module,emqx_calendar},
+     {load_module,emqx_logger_textfmt,brutal_purge,soft_purge,[]},
+     {load_module,emqx_hooks,brutal_purge,soft_purge,[]},
      {load_module,emqx_plugins,brutal_purge,soft_purge,[]},
      {load_module,emqx_pmon,brutal_purge,soft_purge,[]},
      {load_module,emqx_banned,brutal_purge,soft_purge,[]},
@@ -385,7 +411,9 @@
      {load_module,emqx_message,brutal_purge,soft_purge,[]},
      {load_module,emqx_limiter,brutal_purge,soft_purge,[]}]},
    {"4.3.2",
-    [{load_module,emqx_hooks,brutal_purge,soft_purge,[]},
+    [{add_module,emqx_calendar},
+     {load_module,emqx_logger_textfmt,brutal_purge,soft_purge,[]},
+     {load_module,emqx_hooks,brutal_purge,soft_purge,[]},
      {load_module,emqx_plugins,brutal_purge,soft_purge,[]},
      {load_module,emqx_pmon,brutal_purge,soft_purge,[]},
      {load_module,emqx_banned,brutal_purge,soft_purge,[]},
@@ -420,7 +448,8 @@
      {load_module,emqx_message,brutal_purge,soft_purge,[]},
      {load_module,emqx_limiter,brutal_purge,soft_purge,[]}]},
    {"4.3.1",
-    [{load_module,emqx_hooks,brutal_purge,soft_purge,[]},
+    [{add_module,emqx_calendar},
+     {load_module,emqx_hooks,brutal_purge,soft_purge,[]},
      {load_module,emqx_pmon,brutal_purge,soft_purge,[]},
      {load_module,emqx_banned,brutal_purge,soft_purge,[]},
      {load_module,emqx_sys,brutal_purge,soft_purge,[]},
@@ -458,7 +487,8 @@
      {load_module,emqx_message,brutal_purge,soft_purge,[]},
      {load_module,emqx_limiter,brutal_purge,soft_purge,[]}]},
    {"4.3.0",
-    [{load_module,emqx_hooks,brutal_purge,soft_purge,[]},
+    [{add_module,emqx_calendar},
+     {load_module,emqx_hooks,brutal_purge,soft_purge,[]},
      {load_module,emqx_pmon,brutal_purge,soft_purge,[]},
      {load_module,emqx_banned,brutal_purge,soft_purge,[]},
      {load_module,emqx_sys,brutal_purge,soft_purge,[]},
@@ -500,7 +530,9 @@
      {load_module,emqx_limiter,brutal_purge,soft_purge,[]}]},
    {<<".*">>,[]}],
   [{"4.3.15",
-    [{load_module,emqx_alarm,brutal_purge,soft_purge,[]},
+    [{delete_module,emqx_calendar},
+     {load_module,emqx_logger_textfmt,brutal_purge,soft_purge,[]},
+     {load_module,emqx_alarm,brutal_purge,soft_purge,[]},
      {load_module,emqx_alarm_handler,brutal_purge,soft_purge,[]},
      {load_module,emqx_misc,brutal_purge,soft_purge,[]},
      {load_module,emqx_session,brutal_purge,soft_purge,[]},
@@ -513,7 +545,9 @@
      {load_module,emqx_os_mon,brutal_purge,soft_purge,[]},
      {load_module,emqx_app,brutal_purge,soft_purge,[]}]},
    {"4.3.14",
-    [{load_module,emqx_alarm,brutal_purge,soft_purge,[]},
+    [{delete_module,emqx_calendar},
+     {load_module,emqx_logger_textfmt,brutal_purge,soft_purge,[]},
+     {load_module,emqx_alarm,brutal_purge,soft_purge,[]},
      {load_module,emqx_alarm_handler,brutal_purge,soft_purge,[]},
      {load_module,emqx_misc,brutal_purge,soft_purge,[]},
      {load_module,emqx_session,brutal_purge,soft_purge,[]},
@@ -530,7 +564,9 @@
      {load_module,emqx_os_mon,brutal_purge,soft_purge,[]},
      {load_module,emqx_hooks,brutal_purge,soft_purge,[]}]},
    {"4.3.13",
-    [{load_module,emqx_alarm,brutal_purge,soft_purge,[]},
+    [{delete_module,emqx_calendar},
+     {load_module,emqx_logger_textfmt,brutal_purge,soft_purge,[]},
+     {load_module,emqx_alarm,brutal_purge,soft_purge,[]},
      {load_module,emqx_alarm_handler,brutal_purge,soft_purge,[]},
      {load_module,emqx_session,brutal_purge,soft_purge,[]},
      {load_module,emqx_access_rule,brutal_purge,soft_purge,[]},
@@ -553,7 +589,10 @@
      {load_module,emqx_cm,brutal_purge,soft_purge,[]},
      {load_module,emqx_connection,brutal_purge,soft_purge,[]}]},
    {"4.3.12",
-    [{load_module,emqx_alarm_handler,brutal_purge,soft_purge,[]},
+    [{delete_module,emqx_calendar},
+     {load_module,emqx_logger_textfmt,brutal_purge,soft_purge,[]},
+     {load_module,emqx_alarm,brutal_purge,soft_purge,[]},
+     {load_module,emqx_alarm_handler,brutal_purge,soft_purge,[]},
      {load_module,emqx_access_rule,brutal_purge,soft_purge,[]},
      {load_module,emqx_shared_sub,brutal_purge,soft_purge,[]},
      {load_module,emqx_hooks,brutal_purge,soft_purge,[]},
@@ -579,7 +618,10 @@
      {load_module,emqx_message,brutal_purge,soft_purge,[]},
      {load_module,emqx_limiter,brutal_purge,soft_purge,[]}]},
    {"4.3.11",
-    [{load_module,emqx_alarm_handler,brutal_purge,soft_purge,[]},
+    [{delete_module,emqx_calendar},
+     {load_module,emqx_logger_textfmt,brutal_purge,soft_purge,[]},
+     {load_module,emqx_alarm,brutal_purge,soft_purge,[]},
+     {load_module,emqx_alarm_handler,brutal_purge,soft_purge,[]},
      {load_module,emqx_access_rule,brutal_purge,soft_purge,[]},
      {load_module,emqx_shared_sub,brutal_purge,soft_purge,[]},
      {load_module,emqx_hooks,brutal_purge,soft_purge,[]},
@@ -607,7 +649,10 @@
      {load_module,emqx_message,brutal_purge,soft_purge,[]},
      {load_module,emqx_limiter,brutal_purge,soft_purge,[]}]},
    {"4.3.10",
-    [{load_module,emqx_alarm_handler,brutal_purge,soft_purge,[]},
+    [{delete_module,emqx_calendar},
+     {load_module,emqx_logger_textfmt,brutal_purge,soft_purge,[]},
+     {load_module,emqx_alarm,brutal_purge,soft_purge,[]},
+     {load_module,emqx_alarm_handler,brutal_purge,soft_purge,[]},
      {load_module,emqx_access_rule,brutal_purge,soft_purge,[]},
      {load_module,emqx_shared_sub,brutal_purge,soft_purge,[]},
      {load_module,emqx_hooks,brutal_purge,soft_purge,[]},
@@ -635,7 +680,10 @@
      {load_module,emqx_message,brutal_purge,soft_purge,[]},
      {load_module,emqx_limiter,brutal_purge,soft_purge,[]}]},
    {"4.3.9",
-    [{load_module,emqx_alarm_handler,brutal_purge,soft_purge,[]},
+    [{delete_module,emqx_calendar},
+     {load_module,emqx_logger_textfmt,brutal_purge,soft_purge,[]},
+     {load_module,emqx_alarm,brutal_purge,soft_purge,[]},
+     {load_module,emqx_alarm_handler,brutal_purge,soft_purge,[]},
      {load_module,emqx_access_rule,brutal_purge,soft_purge,[]},
      {load_module,emqx_shared_sub,brutal_purge,soft_purge,[]},
      {load_module,emqx_hooks,brutal_purge,soft_purge,[]},
@@ -667,7 +715,10 @@
      {load_module,emqx_message,brutal_purge,soft_purge,[]},
      {load_module,emqx_limiter,brutal_purge,soft_purge,[]}]},
    {"4.3.8",
-    [{load_module,emqx_alarm_handler,brutal_purge,soft_purge,[]},
+    [{delete_module,emqx_calendar},
+     {load_module,emqx_logger_textfmt,brutal_purge,soft_purge,[]},
+     {load_module,emqx_alarm,brutal_purge,soft_purge,[]},
+     {load_module,emqx_alarm_handler,brutal_purge,soft_purge,[]},
      {load_module,emqx_access_rule,brutal_purge,soft_purge,[]},
      {load_module,emqx_shared_sub,brutal_purge,soft_purge,[]},
      {load_module,emqx_hooks,brutal_purge,soft_purge,[]},
@@ -699,7 +750,9 @@
      {load_module,emqx_message,brutal_purge,soft_purge,[]},
      {load_module,emqx_limiter,brutal_purge,soft_purge,[]}]},
    {"4.3.7",
-    [{load_module,emqx_access_rule,brutal_purge,soft_purge,[]},
+    [{delete_module,emqx_calendar},
+     {load_module,emqx_logger_textfmt,brutal_purge,soft_purge,[]},
+     {load_module,emqx_access_rule,brutal_purge,soft_purge,[]},
      {load_module,emqx_shared_sub,brutal_purge,soft_purge,[]},
      {load_module,emqx_hooks,brutal_purge,soft_purge,[]},
      {load_module,emqx_plugins,brutal_purge,soft_purge,[]},
@@ -731,7 +784,9 @@
      {load_module,emqx_message,brutal_purge,soft_purge,[]},
      {load_module,emqx_limiter,brutal_purge,soft_purge,[]}]},
    {"4.3.6",
-    [{load_module,emqx_access_rule,brutal_purge,soft_purge,[]},
+    [{delete_module,emqx_calendar},
+     {load_module,emqx_logger_textfmt,brutal_purge,soft_purge,[]},
+     {load_module,emqx_access_rule,brutal_purge,soft_purge,[]},
      {load_module,emqx_shared_sub,brutal_purge,soft_purge,[]},
      {load_module,emqx_hooks,brutal_purge,soft_purge,[]},
      {load_module,emqx_plugins,brutal_purge,soft_purge,[]},
@@ -763,7 +818,9 @@
      {load_module,emqx_message,brutal_purge,soft_purge,[]},
      {load_module,emqx_limiter,brutal_purge,soft_purge,[]}]},
    {"4.3.5",
-    [{load_module,emqx_shared_sub,brutal_purge,soft_purge,[]},
+    [{delete_module,emqx_calendar},
+     {load_module,emqx_logger_textfmt,brutal_purge,soft_purge,[]},
+     {load_module,emqx_shared_sub,brutal_purge,soft_purge,[]},
      {load_module,emqx_hooks,brutal_purge,soft_purge,[]},
      {load_module,emqx_plugins,brutal_purge,soft_purge,[]},
      {load_module,emqx_pmon,brutal_purge,soft_purge,[]},
@@ -795,7 +852,9 @@
      {load_module,emqx_message,brutal_purge,soft_purge,[]},
      {load_module,emqx_limiter,brutal_purge,soft_purge,[]}]},
    {"4.3.4",
-    [{load_module,emqx_hooks,brutal_purge,soft_purge,[]},
+    [{delete_module,emqx_calendar},
+     {load_module,emqx_logger_textfmt,brutal_purge,soft_purge,[]},
+     {load_module,emqx_hooks,brutal_purge,soft_purge,[]},
      {load_module,emqx_plugins,brutal_purge,soft_purge,[]},
      {load_module,emqx_pmon,brutal_purge,soft_purge,[]},
      {load_module,emqx_banned,brutal_purge,soft_purge,[]},
@@ -827,7 +886,9 @@
      {load_module,emqx_message,brutal_purge,soft_purge,[]},
      {load_module,emqx_limiter,brutal_purge,soft_purge,[]}]},
    {"4.3.3",
-    [{load_module,emqx_hooks,brutal_purge,soft_purge,[]},
+    [{delete_module,emqx_calendar},
+     {load_module,emqx_logger_textfmt,brutal_purge,soft_purge,[]},
+     {load_module,emqx_hooks,brutal_purge,soft_purge,[]},
      {load_module,emqx_plugins,brutal_purge,soft_purge,[]},
      {load_module,emqx_pmon,brutal_purge,soft_purge,[]},
      {load_module,emqx_banned,brutal_purge,soft_purge,[]},
@@ -860,7 +921,9 @@
      {load_module,emqx_message,brutal_purge,soft_purge,[]},
      {load_module,emqx_limiter,brutal_purge,soft_purge,[]}]},
    {"4.3.2",
-    [{load_module,emqx_hooks,brutal_purge,soft_purge,[]},
+    [{delete_module,emqx_calendar},
+     {load_module,emqx_logger_textfmt,brutal_purge,soft_purge,[]},
+     {load_module,emqx_hooks,brutal_purge,soft_purge,[]},
      {load_module,emqx_plugins,brutal_purge,soft_purge,[]},
      {load_module,emqx_pmon,brutal_purge,soft_purge,[]},
      {load_module,emqx_banned,brutal_purge,soft_purge,[]},
@@ -893,7 +956,8 @@
      {load_module,emqx_message,brutal_purge,soft_purge,[]},
      {load_module,emqx_limiter,brutal_purge,soft_purge,[]}]},
    {"4.3.1",
-    [{load_module,emqx_hooks,brutal_purge,soft_purge,[]},
+    [{delete_module,emqx_calendar},
+     {load_module,emqx_hooks,brutal_purge,soft_purge,[]},
      {load_module,emqx_pmon,brutal_purge,soft_purge,[]},
      {load_module,emqx_banned,brutal_purge,soft_purge,[]},
      {load_module,emqx_sys,brutal_purge,soft_purge,[]},
@@ -929,7 +993,8 @@
      {load_module,emqx_message,brutal_purge,soft_purge,[]},
      {load_module,emqx_limiter,brutal_purge,soft_purge,[]}]},
    {"4.3.0",
-    [{load_module,emqx_hooks,brutal_purge,soft_purge,[]},
+    [{delete_module,emqx_calendar},
+     {load_module,emqx_hooks,brutal_purge,soft_purge,[]},
      {load_module,emqx_pmon,brutal_purge,soft_purge,[]},
      {load_module,emqx_banned,brutal_purge,soft_purge,[]},
      {load_module,emqx_sys,brutal_purge,soft_purge,[]},
diff --git a/src/emqx_calendar.erl b/src/emqx_calendar.erl
index c7e2d627f..7f9faf3be 100644
--- a/src/emqx_calendar.erl
+++ b/src/emqx_calendar.erl
@@ -71,7 +71,6 @@ parse(DateStr, Unit, Formatter) ->
     do_parse(DateStr, Unit, Formatter).
 %% -------------------------------------------------------------------------------------------------
 %% internal
-%% emqx_calendar:format(erlang:system_time(second), <<"second">>, <<"+8:00">> ,<<"%Y-%m-%d-%H:%M:%S%Z">>).
 
 time_unit(second) -> second;
 time_unit(millisecond) -> millisecond;
diff --git a/src/emqx_logger_textfmt.erl b/src/emqx_logger_textfmt.erl
index 16cc3a414..ba13c0cb7 100644
--- a/src/emqx_logger_textfmt.erl
+++ b/src/emqx_logger_textfmt.erl
@@ -39,7 +39,7 @@ format(#{msg := Msg0, meta := Meta} = Event,
     logger_formatter:format(Event#{msg := Msg}, Config#{template => Template});
 
 format(#{msg := Msg0, meta := Meta} = Event,
-       #{timezone_offset := TZO, date_format := DFS} = Config) ->
+       #{date_format := DFS} = Config) ->
     Msg = maybe_merge(Msg0, Meta),
     Time =
         case maps:get(time, Event, undefined) of
@@ -48,7 +48,7 @@ format(#{msg := Msg0, meta := Meta} = Event,
             T ->
                 T
         end,
-    Date = emqx_calendar:format(Time, microsecond, TZO, DFS),
+    Date = emqx_calendar:format(Time, microsecond, local, DFS),
     [Date | logger_formatter:format(Event#{msg := Msg}, Config)].
 
 maybe_merge({report, Report}, Meta) when is_map(Report) ->