diff --git a/theme/boost/templates/core_form/element-date_time_selector-inline.mustache b/theme/boost/templates/core_form/element-date_time_selector-inline.mustache
index c01bff22e2b..8adcac22dd8 100644
--- a/theme/boost/templates/core_form/element-date_time_selector-inline.mustache
+++ b/theme/boost/templates/core_form/element-date_time_selector-inline.mustache
@@ -1,6 +1,6 @@
 {{< core_form/element-template-inline }}
     {{$element}}
-        <div class="fdate_time_selector d-flex">
+        <div class="fdate_time_selector d-flex align-items-center">
         {{#element.elements}}
             {{{separator}}}
             {{{html}}}
diff --git a/theme/boost/templates/core_form/element-date_time_selector.mustache b/theme/boost/templates/core_form/element-date_time_selector.mustache
index fb4d48f5a42..225c4eefdc3 100644
--- a/theme/boost/templates/core_form/element-date_time_selector.mustache
+++ b/theme/boost/templates/core_form/element-date_time_selector.mustache
@@ -1,6 +1,6 @@
 {{< core_form/element-template }}
     {{$element}}
-        <div class="fdate_time_selector d-flex flex-wrap">
+        <div class="fdate_time_selector d-flex flex-wrap align-items-center">
         {{#element.elements}}
             {{{separator}}}
             {{{html}}}