diff --git a/homeassistant/helpers/template.py b/homeassistant/helpers/template.py
index 335d6842548..731b8f720e4 100644
--- a/homeassistant/helpers/template.py
+++ b/homeassistant/helpers/template.py
@@ -2477,7 +2477,8 @@ def relative_time(hass: HomeAssistant, value: Any) -> Any:
     The age can be in second, minute, hour, day, month or year. Only the
     biggest unit is considered, e.g. if it's 2 days and 3 hours, "2 days" will
     be returned.
-    Make sure date is not in the future, or else it will return None.
+    If the input datetime is in the future,
+    the input datetime will be returned.
 
     If the input are not a datetime object the input will be returned unmodified.
     """
diff --git a/tests/helpers/test_template.py b/tests/helpers/test_template.py
index d134570d119..13b55e52bb5 100644
--- a/tests/helpers/test_template.py
+++ b/tests/helpers/test_template.py
@@ -2307,6 +2307,38 @@ def test_relative_time(mock_is_safe, hass: HomeAssistant) -> None:
         ).async_render()
         assert result == "string"
 
+        # Test behavior when current time is same as the input time
+        result = template.Template(
+            (
+                "{{"
+                "  relative_time("
+                "    strptime("
+                '        "2000-01-01 10:00:00 +00:00",'
+                '        "%Y-%m-%d %H:%M:%S %z"'
+                "    )"
+                "  )"
+                "}}"
+            ),
+            hass,
+        ).async_render()
+        assert result == "0 seconds"
+
+        # Test behavior when the input time is in the future
+        result = template.Template(
+            (
+                "{{"
+                "  relative_time("
+                "    strptime("
+                '        "2000-01-01 11:00:00 +00:00",'
+                '        "%Y-%m-%d %H:%M:%S %z"'
+                "    )"
+                "  )"
+                "}}"
+            ),
+            hass,
+        ).async_render()
+        assert result == "2000-01-01 11:00:00+00:00"
+
         info = template.Template(relative_time_template, hass).async_render_to_info()
         assert info.has_time is True