diff --git a/pyanaconda/modules/timezone/timezone.py b/pyanaconda/modules/timezone/timezone.py
index b514455e6cee..4c7ec64cd572 100644
--- a/pyanaconda/modules/timezone/timezone.py
+++ b/pyanaconda/modules/timezone/timezone.py
@@ -17,6 +17,9 @@
 # License and may only be used or replicated with the express permission of
 # Red Hat, Inc.
 #
+
+import datetime
+
 from pykickstart.errors import KickstartParseError
 
 from pyanaconda.core.i18n import _
@@ -36,6 +39,7 @@
     ConfigureNTPTask, ConfigureTimezoneTask
 from pyanaconda.modules.timezone.kickstart import TimezoneKickstartSpecification
 from pyanaconda.modules.timezone.timezone_interface import TimezoneInterface
+from pyanaconda.timezone import get_timezone, set_system_date_time, get_all_regions_and_timezones
 
 from pyanaconda.anaconda_loggers import get_module_logger
 log = get_module_logger(__name__)
@@ -167,6 +171,20 @@ def set_timezone_with_priority(self, timezone, priority):
         self.timezone_changed.emit()
         log.debug("Timezone is set to %s.", timezone)
 
+    def get_all_valid_timezones(self):
+        """Get all valid timezones.
+
+        :return: list of valid timezones
+        :rtype: list of str
+        """
+        timezone_dict = get_all_regions_and_timezones()
+        # convert to a dict of lists for easier transfer over DBus
+        # - change the nested sets to lists
+        new_timezone_dict = {}
+        for region in timezone_dict:
+            new_timezone_dict[region] = list(timezone_dict[region])
+        return new_timezone_dict
+
     @property
     def is_utc(self):
         """Is the hardware clock set to UTC?"""
@@ -259,3 +277,30 @@ def geolocation_result(self):
         :return GeolocationData: result of the lookup, empty if not ready yet
         """
         return self._geoloc_result
+
+    def get_system_date_time(self):
+        """Get system time as a ISO 8601 formatted string.
+
+        :return: system time as ISO 8601 formatted string
+        :rtype: str
+        """
+        # convert to the expected tzinfo format via get_timezone()
+        return datetime.datetime.now(get_timezone(self._timezone)).isoformat()
+
+    def set_system_date_time(self, date_time_spec):
+        """Set system time based on a ISO 8601 formatted string.
+
+        :param str date_time_spec: ISO 8601 time specification to use
+        """
+        log.debug("Setting system time to: %s, with timezone: %s", date_time_spec, self._timezone)
+        # first convert the ISO 8601 time string to a Python date object
+        date = datetime.datetime.fromisoformat(date_time_spec)
+        # set the date to the system
+        set_system_date_time(
+            year=date.year,
+            month=date.month,
+            day=date.day,
+            hour=date.hour,
+            minute=date.minute,
+            tz=self._timezone
+        )
diff --git a/pyanaconda/modules/timezone/timezone_interface.py b/pyanaconda/modules/timezone/timezone_interface.py
index 25d7b16226eb..506e48b8b1a7 100644
--- a/pyanaconda/modules/timezone/timezone_interface.py
+++ b/pyanaconda/modules/timezone/timezone_interface.py
@@ -79,6 +79,16 @@ def SetTimezoneWithPriority(self, timezone: Str, priority: UInt16):
         """
         self.implementation.set_timezone_with_priority(timezone, priority)
 
+    def GetTimezones(self) -> Dict[Str, List[Str]]:
+        """Get valid timezones.
+
+        Return a dictionary, where keys are region ids and values are lists
+        of timezone names in the region.
+
+        :return: a dictionary of timezone lists per region
+        """
+        return self.implementation.get_all_valid_timezones()
+
     @property
     def IsUTC(self) -> Bool:
         """Is the hardware clock set to UTC?
@@ -157,3 +167,21 @@ def GeolocationResult(self) -> Structure:
         return GeolocationData.to_structure(
             self.implementation.geolocation_result
         )
+
+    def GetSystemDateTime(self) -> Str:
+        """Get the current local date and time of the system.
+
+        The timezone set via the Timezone property affects the returned data.
+
+        :return: a string representing the date and time in ISO 8601 format
+        """
+        return self.implementation.get_system_date_time()
+
+    def SetSystemDateTime(self, date_time_spec: Str):
+        """Set the current local date and time of the system.
+
+        The timezone set via the Timezone property will be applied to the received data.
+
+        :param date_time_spec: a string representing the date and time in ISO 8601 format
+        """
+        self.implementation.set_system_date_time(date_time_spec)
diff --git a/tests/unit_tests/pyanaconda_tests/modules/timezone/test_module_timezone.py b/tests/unit_tests/pyanaconda_tests/modules/timezone/test_module_timezone.py
index 462e2b2898cf..7f8bdb19ca1a 100644
--- a/tests/unit_tests/pyanaconda_tests/modules/timezone/test_module_timezone.py
+++ b/tests/unit_tests/pyanaconda_tests/modules/timezone/test_module_timezone.py
@@ -18,6 +18,9 @@
 # Red Hat Author(s): Vendula Poncova <vponcova@redhat.com>
 #
 import unittest
+from unittest.mock import patch, MagicMock
+
+from collections import OrderedDict
 
 from dasbus.structure import compare_data
 from dasbus.typing import *  # pylint: disable=wildcard-import
@@ -25,6 +28,7 @@
 from pyanaconda.core.constants import TIME_SOURCE_SERVER, TIME_SOURCE_POOL, \
     TIMEZONE_PRIORITY_DEFAULT, TIMEZONE_PRIORITY_LANGUAGE, TIMEZONE_PRIORITY_GEOLOCATION, \
     TIMEZONE_PRIORITY_KICKSTART, TIMEZONE_PRIORITY_USER
+from pyanaconda.timezone import get_timezone
 from pyanaconda.modules.common.constants.services import TIMEZONE
 from pyanaconda.modules.common.structures.requirement import Requirement
 from pyanaconda.modules.common.structures.timezone import TimeSourceData
@@ -378,3 +382,62 @@ def test_geoloc_result_callback(self):
         result = GeolocationData.from_values(territory="", timezone="")
         self.timezone_module._set_geolocation_result(result)
         assert self.timezone_module.geolocation_result == result
+
+    @patch("pyanaconda.modules.timezone.timezone.get_all_regions_and_timezones")
+    def test_get_timezones(self, get_all_tz):
+        """Test getting a listing of all valid timezones."""
+        get_all_tz.return_value = OrderedDict([("foo", {"bar", "baz"})])
+        # as the timezones for a region are listed as a set, we need to be a bit careful
+        # when comparing the results
+        result = self.timezone_module.GetTimezones()
+        assert list(result.keys()) == ["foo"]
+        assert sorted(result["foo"]) == ['bar', 'baz']
+        get_all_tz.assert_called_once()
+
+    @patch("pyanaconda.modules.timezone.timezone.datetime")
+    def test_get_system_date_time(self, fake_datetime):
+        """Test getting system date and time."""
+        # use a non-default timezone
+        self.timezone_module._timezone = "Antarctica/South_Pole"
+        # fake date object returned by now() call
+        fake_date = MagicMock()
+        fake_date.isoformat.return_value = "2023-06-22T18:49:36.878200"
+
+        def fake_now(value):
+            assert value == get_timezone("Antarctica/South_Pole")
+            return fake_date
+
+        fake_datetime.datetime.now.side_effect = fake_now
+        assert self.timezone_module.get_system_date_time() == "2023-06-22T18:49:36.878200"
+        fake_date.isoformat.assert_called_once()
+
+    @patch("pyanaconda.modules.timezone.timezone.set_system_date_time")
+    def test_set_system_date_time(self, fake_set_time):
+        """Test setting system date and time."""
+        self.timezone_module.set_system_date_time("2023-06-22T18:49:36.878200")
+        fake_set_time.assert_called_once_with(year=2023,
+                                              month=6,
+                                              day=22,
+                                              hour=18,
+                                              minute=49,
+                                              tz="America/New_York")
+
+    def test_get_timezones_interface(self):
+        """Test the GetTimezones interface method."""
+        self.timezone_module.get_all_valid_timezones = MagicMock()
+        self.timezone_module.get_all_valid_timezones.return_value = {"foo": ["bar", "baz"]}
+        assert self.timezone_interface.GetTimezones() == {"foo": ["bar", "baz"]}
+
+    def test_get_system_date_time_interface(self):
+        """Test the GetSystemDateTime interface method."""
+        self.timezone_module.get_system_date_time = MagicMock()
+        self.timezone_module.get_system_date_time.return_value = "2023-06-22T18:49:36.878200"
+        assert self.timezone_interface.GetSystemDateTime() == "2023-06-22T18:49:36.878200"
+
+    def test_set_system_date_time_interface(self):
+        """Test the SetSystemDateTime interface method."""
+        self.timezone_module.set_system_date_time = MagicMock()
+        self.timezone_interface.SetSystemDateTime("2023-06-22T18:49:36.878200")
+        self.timezone_module.set_system_date_time.assert_called_once_with(
+            '2023-06-22T18:49:36.878200'
+        )
diff --git a/ui/webui/test/reference b/ui/webui/test/reference
index 094d24845711..2d8a30a4cf42 160000
--- a/ui/webui/test/reference
+++ b/ui/webui/test/reference
@@ -1 +1 @@
-Subproject commit 094d248457119ead6c5c07f833e7b985789b27df
+Subproject commit 2d8a30a4cf4291d6225d9ce80e1260558eb85246