Index: src/wp-admin/css/forms.css
===================================================================
--- src/wp-admin/css/forms.css	(revision 36262)
+++ src/wp-admin/css/forms.css	(working copy)
@@ -655,6 +655,14 @@
 	margin-bottom: 0;
 }
 
+.form-table .date-time-doc {
+	margin-top: 1em;
+}
+
+.form-table p.timezone-info {
+	margin: 1em 0;
+}
+
 .form-table td fieldset label {
 	margin: 0.25em 0 0.5em !important;
 	display: inline-block;
@@ -893,9 +901,8 @@
   20.0 - Settings
 ------------------------------------------------------------------------------*/
 
-#utc-time, #local-time {
-	padding-left: 25px;
-	font-style: italic;
+.timezone-info code {
+	white-space: nowrap;
 }
 
 .defaultavatarpicker .avatar {
@@ -903,6 +910,11 @@
 	vertical-align: middle;
 }
 
+.options-general-php .date-time-text {
+	display: inline-block;
+	min-width: 10em;
+}
+
 .options-general-php input.small-text {
 	width: 56px;
 }
@@ -1268,16 +1280,11 @@
 		display: block;
 	}
 
-	#utc-time {
-		margin-top: 10px;
-	}
-
 	#utc-time,
 	#local-time {
 		display: block;
 		float: none;
-		padding: 0;
-		line-height: 2;
+		margin-top: 0.5em;
 	}
 
 	.form-field #domain {
@@ -1316,6 +1323,11 @@
 	.wp-pwd .button .text {
 		display: none;
 	}
+
+	.options-general-php input[type="text"].small-text {
+		max-width: 60px;
+		margin: 0;
+	}
 }
 
 @media only screen and (max-width: 768px) {
@@ -1358,3 +1370,10 @@
 		width: 49%;
 	}
 }
+
+@media only screen and (max-width: 320px) {
+	.options-general-php .date-time-text.date-time-custom-text {
+		min-width: 0;
+		margin-right: 0.5em;
+	}
+}
Index: src/wp-admin/includes/options.php
===================================================================
--- src/wp-admin/includes/options.php	(revision 36262)
+++ src/wp-admin/includes/options.php	(working copy)
@@ -51,7 +51,7 @@
 
 		$("input[name='date_format']").click(function(){
 			if ( "date_format_custom_radio" != $(this).attr("id") )
-				$( "input[name='date_format_custom']" ).val( $( this ).val() ).siblings( '.example' ).text( $( this ).parent( 'label' ).text() );
+				$( "input[name='date_format_custom']" ).val( $( this ).val() ).siblings( '.example' ).text( $( this ).parent( 'label' ).children( '.format-i18n' ).text() );
 		});
 		$("input[name='date_format_custom']").focus(function(){
 			$( '#date_format_custom_radio' ).prop( 'checked', true );
@@ -59,7 +59,7 @@
 
 		$("input[name='time_format']").click(function(){
 			if ( "time_format_custom_radio" != $(this).attr("id") )
-				$( "input[name='time_format_custom']" ).val( $( this ).val() ).siblings( '.example' ).text( $( this ).parent( 'label' ).text() );
+				$( "input[name='time_format_custom']" ).val( $( this ).val() ).siblings( '.example' ).text( $( this ).parent( 'label' ).children( '.format-i18n' ).text() );
 		});
 		$("input[name='time_format_custom']").focus(function(){
 			$( '#time_format_custom_radio' ).prop( 'checked', true );
Index: src/wp-admin/options-general.php
===================================================================
--- src/wp-admin/options-general.php	(revision 36262)
+++ src/wp-admin/options-general.php	(working copy)
@@ -145,23 +145,28 @@
 <?php echo wp_timezone_choice($tzstring); ?>
 </select>
 
+<p class="description" id="timezone-description"><?php _e( 'Choose a city in the same timezone as you.' ); ?></p>
+<?php if ( $check_zone_info && $tzstring ) : ?>
+
+<p class="timezone-info">
 	<span id="utc-time"><?php
-		/* translators: %s: UTC time */
-		printf( __( '<abbr title="Coordinated Universal Time">UTC</abbr> time is %s' ),
+		/* translators: 1: UTC abbreviation, 2: UTC time */
+		printf( __( 'Universal time (%1$s) is %2$s.' ),
+			'<abbr>' . __( 'UTC' ) . '</abbr>',
 			'<code>' . date_i18n( $timezone_format, false, 'gmt' ) . '</code>'
 		);
 	?></span>
-<?php if ( get_option('timezone_string') || !empty($current_offset) ) : ?>
+<?php if ( get_option( 'timezone_string' ) || ! empty( $current_offset ) ) : ?>
 	<span id="local-time"><?php
 		/* translators: %s: local time */
-		printf( __( 'Local time is %s' ),
+		printf( __( 'Local time is %s.' ),
 			'<code>' . date_i18n( $timezone_format ) . '</code>'
 		);
 	?></span>
 <?php endif; ?>
-<p class="description" id="timezone-description"><?php _e( 'Choose a city in the same timezone as you.' ); ?></p>
-<?php if ($check_zone_info && $tzstring) : ?>
-<br />
+</p>
+
+<p class="timezone-info">
 <span>
 	<?php
 	// Set TZ so localtime works.
@@ -211,6 +216,7 @@
 	?>
 	</span>
 <?php endif; ?>
+</p>
 </td>
 
 </tr>
@@ -232,18 +238,21 @@
 	$custom = true;
 
 	foreach ( $date_formats as $format ) {
-		echo "\t<label title='" . esc_attr($format) . "'><input type='radio' name='date_format' value='" . esc_attr($format) . "'";
+		echo "\t<label><input type='radio' name='date_format' value='" . esc_attr( $format ) . "'";
 		if ( get_option('date_format') === $format ) { // checked() uses "==" rather than "==="
 			echo " checked='checked'";
 			$custom = false;
 		}
-		echo ' /> ' . date_i18n( $format ) . "</label><br />\n";
+		echo ' /> <span class="date-time-text format-i18n">' . date_i18n( $format ) . '</span><code>' . $format . "</code></label><br />\n";
 	}
 
-	echo '	<label><input type="radio" name="date_format" id="date_format_custom_radio" value="\c\u\s\t\o\m"';
+	echo '<label><input type="radio" name="date_format" id="date_format_custom_radio" value="\c\u\s\t\o\m"';
 	checked( $custom );
-	echo '/> ' . __( 'Custom:' ) . '<span class="screen-reader-text"> ' . __( 'enter a custom date format in the following field' ) . "</span></label>\n";
-	echo '<label for="date_format_custom" class="screen-reader-text">' . __( 'Custom date format:' ) . '</label><input type="text" name="date_format_custom" id="date_format_custom" value="' . esc_attr( get_option('date_format') ) . '" class="small-text" /> <span class="screen-reader-text">' . __( 'example:' ) . ' </span><span class="example"> ' . date_i18n( get_option('date_format') ) . "</span> <span class='spinner'></span>\n";
+	echo '/> <span class="date-time-text date-time-custom-text">' . __( 'Custom:' ) . '<span class="screen-reader-text"> ' . __( 'enter a custom date format in the following field' ) . '</span></label>' .
+		'<label for="date_format_custom" class="screen-reader-text">' . __( 'Custom date format:' ) . '</label>' .
+		'<input type="text" name="date_format_custom" id="date_format_custom" value="' . esc_attr( get_option( 'date_format' ) ) . '" class="small-text" /></span>' .
+		'<span class="screen-reader-text">' . __( 'example:' ) . ' </span> <span class="example">' . date_i18n( get_option( 'date_format' ) ) . '</span>' .
+		"<span class='spinner'></span>\n";
 ?>
 	</fieldset>
 </td>
@@ -265,20 +274,23 @@
 	$custom = true;
 
 	foreach ( $time_formats as $format ) {
-		echo "\t<label title='" . esc_attr($format) . "'><input type='radio' name='time_format' value='" . esc_attr($format) . "'";
+		echo "\t<label><input type='radio' name='time_format' value='" . esc_attr( $format ) . "'";
 		if ( get_option('time_format') === $format ) { // checked() uses "==" rather than "==="
 			echo " checked='checked'";
 			$custom = false;
 		}
-		echo ' /> ' . date_i18n( $format ) . "</label><br />\n";
+		echo ' /> <span class="date-time-text format-i18n">' . date_i18n( $format ) . '</span><code>' . $format . "</code></label><br />\n";
 	}
 
-	echo '	<label><input type="radio" name="time_format" id="time_format_custom_radio" value="\c\u\s\t\o\m"';
+	echo '<label><input type="radio" name="time_format" id="time_format_custom_radio" value="\c\u\s\t\o\m"';
 	checked( $custom );
-	echo '/> ' . __( 'Custom:' ) . '<span class="screen-reader-text"> ' . __( 'enter a custom time format in the following field' ) . "</span></label>\n";
-	echo '<label for="time_format_custom" class="screen-reader-text">' . __( 'Custom time format:' ) . '</label><input type="text" name="time_format_custom" id="time_format_custom" value="' . esc_attr( get_option('time_format') ) . '" class="small-text" /> <span class="screen-reader-text">' . __( 'example:' ) . ' </span><span class="example"> ' . date_i18n( get_option('time_format') ) . "</span> <span class='spinner'></span>\n";
+	echo '/> <span class="date-time-text date-time-custom-text">' . __( 'Custom:' ) . '<span class="screen-reader-text"> ' . __( 'enter a custom time format in the following field' ) . '</span></label>' .
+		'<label for="time_format_custom" class="screen-reader-text">' . __( 'Custom time format:' ) . '</label>' .
+		'<input type="text" name="time_format_custom" id="time_format_custom" value="' . esc_attr( get_option( 'time_format' ) ) . '" class="small-text" /></span>' .
+		'<span class="screen-reader-text">' . __( 'example:' ) . ' </span> <span class="example">' . date_i18n( get_option( 'time_format' ) ) . '</span>' .
+		"<span class='spinner'></span>\n";
 
-	echo "\t<p>" . __('<a href="https://codex.wordpress.org/Formatting_Date_and_Time">Documentation on date and time formatting</a>.') . "</p>\n";
+	echo "\t<p class='date-time-doc'>" . __('<a href="https://codex.wordpress.org/Formatting_Date_and_Time">Documentation on date and time formatting</a>.') . "</p>\n";
 ?>
 	</fieldset>
 </td>